[GitHub/WoltLab/woltlab.github.io.git] / 6.0 / migration / wsc55 / php / index.html


<!doctype html>
<html lang="en" class="no-js">
  <head>
    
      <meta charset="utf-8">
      <meta name="viewport" content="width=device-width,initial-scale=1">
      
      
        <link rel="canonical" href="https://docs.woltlab.com/6.0/migration/wsc55/php/">
      
      <link rel="icon" href="../../../assets/default.favicon.ico">
      <meta name="generator" content="mkdocs-1.4.1, mkdocs-material-8.5.7">
    
    
        <title>PHP API - WoltLab Suite Documentation</title>
      
    
      <link rel="stylesheet" href="../../../assets/stylesheets/main.20d9efc8.min.css">
      
        
        <link rel="stylesheet" href="../../../assets/stylesheets/palette.cbb835fc.min.css">
        
          
          <meta name="theme-color" content="#009485">
        
      
      <link rel="stylesheet" href="../../../stylesheets/extra.css">
    
    <script>__md_scope=new URL("../../..",location),__md_hash=e=>[...e].reduce((e,_)=>(e<<5)-e+_.charCodeAt(0),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
    
      
  </head>
  
  
    <body dir="ltr" data-md-color-scheme="" data-md-color-primary="teal" data-md-color-accent="">
  
    
    <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
    <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
    <label class="md-overlay" for="__drawer"></label>
    <div data-md-component="skip">
      
        
        <a href="#migrating-from-woltlab-suite-55-php" class="md-skip">
          Skip to content
        </a>
      
    </div>
    <div data-md-component="announce">
      
        <aside class="md-banner">
          <div class="md-banner__inner md-grid md-typeset">
            
            
    <a href="https://www.woltlab.com">Back to <strong>woltlab.com</strong></a>

          </div>
          
        </aside>
      
    </div>
    
      <div data-md-component="outdated" hidden>
        
      </div>
    
    
<header class="md-header" data-md-component="header">
  <nav class="md-header__inner md-grid" aria-label="Header">
    <a href="../../.." title="WoltLab Suite Documentation" class="md-header__button md-logo" aria-label="WoltLab Suite Documentation" data-md-component="logo">
      
  <img src="../../../assets/logo.png" alt="logo">

    </a>
    <label class="md-header__button md-icon" for="__drawer">
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3V6m0 5h18v2H3v-2m0 5h18v2H3v-2Z"/></svg>
    </label>
    <div class="md-header__title" data-md-component="header-title">
      <div class="md-header__ellipsis">
        <div class="md-header__topic">
          <span class="md-ellipsis">
            WoltLab Suite Documentation
          </span>
        </div>
        <div class="md-header__topic" data-md-component="header-topic">
          <span class="md-ellipsis">
            
              PHP API
            
          </span>
        </div>
      </div>
    </div>
    
    
      <label class="md-header__button md-icon" for="__search">
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z"/></svg>
      </label>
      <div class="md-search" data-md-component="search" role="dialog">
  <label class="md-search__overlay" for="__search"></label>
  <div class="md-search__inner" role="search">
    <form class="md-search__form" name="search">
      <input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" required>
      <label class="md-search__icon md-icon" for="__search">
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z"/></svg>
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg>
      </label>
      <nav class="md-search__options" aria-label="Search">
        
        <button type="reset" class="md-search__icon md-icon" title="Clear" aria-label="Clear" tabindex="-1">
          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41Z"/></svg>
        </button>
      </nav>
      
    </form>
    <div class="md-search__output">
      <div class="md-search__scrollwrap" data-md-scrollfix>
        <div class="md-search-result" data-md-component="search-result">
          <div class="md-search-result__meta">
            Initializing search
          </div>
          <ol class="md-search-result__list"></ol>
        </div>
      </div>
    </div>
  </div>
</div>
    
    
      <div class="md-header__source">
        <a href="https://github.com/WoltLab/docs.woltlab.com/" title="Go to repository" class="md-source" data-md-component="source">
  <div class="md-source__icon md-icon">
    
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc.--><path d="M439.55 236.05 244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81z"/></svg>
  </div>
  <div class="md-source__repository">
    GitHub
  </div>
</a>
      </div>
    
  </nav>
  
</header>
    
    <div class="md-container" data-md-component="container">
      
      
      <main class="md-main" data-md-component="main">
        <div class="md-main__inner md-grid">
          
            
              <div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
                <div class="md-sidebar__scrollwrap">
                  <div class="md-sidebar__inner">
                    

<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
  <label class="md-nav__title" for="__drawer">
    <a href="../../.." title="WoltLab Suite Documentation" class="md-nav__button md-logo" aria-label="WoltLab Suite Documentation" data-md-component="logo">
      
  <img src="../../../assets/logo.png" alt="logo">

    </a>
    WoltLab Suite Documentation
  </label>
  
    <div class="md-nav__source">
      <a href="https://github.com/WoltLab/docs.woltlab.com/" title="Go to repository" class="md-source" data-md-component="source">
  <div class="md-source__icon md-icon">
    
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc.--><path d="M439.55 236.05 244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81z"/></svg>
  </div>
  <div class="md-source__repository">
    GitHub
  </div>
</a>
    </div>
  
  <ul class="md-nav__list" data-md-scrollfix>
    
      
    <li class="md-nav__item">
      <a href="../../../getting-started/" class="md-nav__link">
        Getting Started
      </a>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_2" type="checkbox" id="__nav_2" >
      
      
        <label class="md-nav__link" for="__nav_2">
          PHP API
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="PHP API" data-md-level="1">
        <label class="md-nav__title" for="__nav_2">
          <span class="md-nav__icon md-icon"></span>
          PHP API
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../../php/pages/" class="md-nav__link">
        Pages
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/database-objects/" class="md-nav__link">
        Database Objects
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/database-access/" class="md-nav__link">
        Database Access
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/exceptions/" class="md-nav__link">
        Exceptions
      </a>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_2_5" type="checkbox" id="__nav_2_5" >
      
      
        <label class="md-nav__link" for="__nav_2_5">
          API
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="API" data-md-level="2">
        <label class="md-nav__title" for="__nav_2_5">
          <span class="md-nav__icon md-icon"></span>
          API
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_2_5_1" type="checkbox" id="__nav_2_5_1" >
      
      
        <label class="md-nav__link" for="__nav_2_5_1">
          Caches
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="Caches" data-md-level="3">
        <label class="md-nav__title" for="__nav_2_5_1">
          <span class="md-nav__icon md-icon"></span>
          Caches
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../../php/api/caches/" class="md-nav__link">
        Overview
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/caches_persistent-caches/" class="md-nav__link">
        Persistent Caches
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/caches_runtime-caches/" class="md-nav__link">
        Runtime Caches
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/comments/" class="md-nav__link">
        Comments
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/cronjobs/" class="md-nav__link">
        Cronjobs
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/events/" class="md-nav__link">
        Events
      </a>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_2_5_5" type="checkbox" id="__nav_2_5_5" >
      
      
        <label class="md-nav__link" for="__nav_2_5_5">
          Form Builder
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="Form Builder" data-md-level="3">
        <label class="md-nav__title" for="__nav_2_5_5">
          <span class="md-nav__icon md-icon"></span>
          Form Builder
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../../php/api/form_builder/overview/" class="md-nav__link">
        Overview
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/form_builder/structure/" class="md-nav__link">
        Structure
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/form_builder/form_fields/" class="md-nav__link">
        Fields
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/form_builder/validation_data/" class="md-nav__link">
        Validation and Data
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/form_builder/dependencies/" class="md-nav__link">
        Dependencies
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/package_installation_plugins/" class="md-nav__link">
        Package Installation Plugins
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/user_activity_points/" class="md-nav__link">
        User Activity Points
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/user_notifications/" class="md-nav__link">
        User Notifications
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/api/sitemaps/" class="md-nav__link">
        Sitemaps
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/code-style/" class="md-nav__link">
        Code Style
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/apps/" class="md-nav__link">
        Apps
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../php/gdpr/" class="md-nav__link">
        GDPR
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_3" type="checkbox" id="__nav_3" >
      
      
        <label class="md-nav__link" for="__nav_3">
          Languages, Templates & CSS
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="Languages, Templates & CSS" data-md-level="1">
        <label class="md-nav__title" for="__nav_3">
          <span class="md-nav__icon md-icon"></span>
          Languages, Templates & CSS
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../../view/languages/" class="md-nav__link">
        Languages
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../view/templates/" class="md-nav__link">
        Templates
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../view/template-plugins/" class="md-nav__link">
        Template Plugins
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../view/css/" class="md-nav__link">
        CSS
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_4" type="checkbox" id="__nav_4" >
      
      
        <label class="md-nav__link" for="__nav_4">
          TypeScript and JavaScript API
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="TypeScript and JavaScript API" data-md-level="1">
        <label class="md-nav__title" for="__nav_4">
          <span class="md-nav__icon md-icon"></span>
          TypeScript and JavaScript API
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../../javascript/general-usage/" class="md-nav__link">
        General Usage
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/typescript/" class="md-nav__link">
        TypeScript
      </a>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_4_3" type="checkbox" id="__nav_4_3" >
      
      
        <label class="md-nav__link" for="__nav_4_3">
          Components
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="Components" data-md-level="2">
        <label class="md-nav__title" for="__nav_4_3">
          <span class="md-nav__icon md-icon"></span>
          Components
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../../javascript/components_confirmation/" class="md-nav__link">
        Confirmation
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/components_dialog/" class="md-nav__link">
        Dialog
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_4_4" type="checkbox" id="__nav_4_4" >
      
      
        <label class="md-nav__link" for="__nav_4_4">
          New API
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="New API" data-md-level="2">
        <label class="md-nav__title" for="__nav_4_4">
          <span class="md-nav__icon md-icon"></span>
          New API
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../../javascript/new-api_writing-a-module/" class="md-nav__link">
        Writing a module
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/new-api_data-structures/" class="md-nav__link">
        Data Structures
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/new-api_core/" class="md-nav__link">
        Core Functions
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/new-api_dom/" class="md-nav__link">
        DOM
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/new-api_events/" class="md-nav__link">
        Event Handling
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/new-api_ajax/" class="md-nav__link">
        Ajax
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/new-api_dialogs/" class="md-nav__link">
        Dialogs
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/new-api_browser/" class="md-nav__link">
        Browser and Screen Sizes
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/new-api_ui/" class="md-nav__link">
        User Interface
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/legacy-api/" class="md-nav__link">
        Legacy API
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../javascript/code-snippets/" class="md-nav__link">
        Code Snippets
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_5" type="checkbox" id="__nav_5" >
      
      
        <label class="md-nav__link" for="__nav_5">
          Package Components
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="Package Components" data-md-level="1">
        <label class="md-nav__title" for="__nav_5">
          <span class="md-nav__icon md-icon"></span>
          Package Components
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../../package/package-xml/" class="md-nav__link">
        package.xml
      </a>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_5_2" type="checkbox" id="__nav_5_2" >
      
      
        <label class="md-nav__link" for="__nav_5_2">
          PIPs
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="PIPs" data-md-level="2">
        <label class="md-nav__title" for="__nav_5_2">
          <span class="md-nav__icon md-icon"></span>
          PIPs
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../../package/pip/" class="md-nav__link">
        Overview
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/acl-option/" class="md-nav__link">
        aclOption
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/acp-menu/" class="md-nav__link">
        acpMenu
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/acp-search-provider/" class="md-nav__link">
        acpSearchProvider
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/acp-template/" class="md-nav__link">
        acpTemplate
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/acp-template-delete/" class="md-nav__link">
        acpTemplateDelete
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/bbcode/" class="md-nav__link">
        bbcode
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/box/" class="md-nav__link">
        box
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/clipboard-action/" class="md-nav__link">
        clipboardAction
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/core-object/" class="md-nav__link">
        coreObject
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/cronjob/" class="md-nav__link">
        cronjob
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/database/" class="md-nav__link">
        database
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/event-listener/" class="md-nav__link">
        eventListener
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/file/" class="md-nav__link">
        file
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/file-delete/" class="md-nav__link">
        fileDelete
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/language/" class="md-nav__link">
        language
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/media-provider/" class="md-nav__link">
        mediaProvider
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/menu/" class="md-nav__link">
        menu
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/menu-item/" class="md-nav__link">
        menuItem
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/object-type/" class="md-nav__link">
        objectType
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/object-type-definition/" class="md-nav__link">
        objectTypeDefinition
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/option/" class="md-nav__link">
        option
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/page/" class="md-nav__link">
        page
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/pip/" class="md-nav__link">
        pip
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/script/" class="md-nav__link">
        script
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/smiley/" class="md-nav__link">
        smiley
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/sql/" class="md-nav__link">
        sql
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/style/" class="md-nav__link">
        style
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/template/" class="md-nav__link">
        template
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/template-delete/" class="md-nav__link">
        templateDelete
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/template-listener/" class="md-nav__link">
        templateListener
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/user-group-option/" class="md-nav__link">
        userGroupOption
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/user-menu/" class="md-nav__link">
        userMenu
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/user-notification-event/" class="md-nav__link">
        userNotificationEvent
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/user-option/" class="md-nav__link">
        userOption
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/pip/user-profile-menu/" class="md-nav__link">
        userProfileMenu
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../package/database-php-api/" class="md-nav__link">
        Database PHP API
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--active md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6" type="checkbox" id="__nav_6" checked>
      
      
        <label class="md-nav__link" for="__nav_6">
          Migration
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="Migration" data-md-level="1">
        <label class="md-nav__title" for="__nav_6">
          <span class="md-nav__icon md-icon"></span>
          Migration
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item md-nav__item--active md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_1" type="checkbox" id="__nav_6_1" checked>
      
      
        <label class="md-nav__link" for="__nav_6_1">
          From WoltLab Suite 5.5
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="From WoltLab Suite 5.5" data-md-level="2">
        <label class="md-nav__title" for="__nav_6_1">
          <span class="md-nav__icon md-icon"></span>
          From WoltLab Suite 5.5
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item md-nav__item--active">
      
      <input class="md-nav__toggle md-toggle" data-md-toggle="toc" type="checkbox" id="__toc">
      
      
        <label class="md-nav__link md-nav__link--active" for="__toc">
          PHP API
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <a href="./" class="md-nav__link md-nav__link--active">
        PHP API
      </a>
      
        
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
  
  
    <label class="md-nav__title" for="__toc">
      <span class="md-nav__icon md-icon"></span>
      Table of contents
    </label>
    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
      
        <li class="md-nav__item">
  <a href="#minimum-requirements" class="md-nav__link">
    Minimum requirements
  </a>
  
</li>
      
        <li class="md-nav__item">
  <a href="#inheritance" class="md-nav__link">
    Inheritance
  </a>
  
    <nav class="md-nav" aria-label="Inheritance">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#parameter-return-property-types" class="md-nav__link">
    Parameter / Return / Property Types
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#final" class="md-nav__link">
    final
  </a>
  
</li>
        
      </ul>
    </nav>
  
</li>
      
        <li class="md-nav__item">
  <a href="#application-boot" class="md-nav__link">
    Application Boot
  </a>
  
    <nav class="md-nav" aria-label="Application Boot">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#request-specific-logic-will-no-longer-happen-during-boot" class="md-nav__link">
    Request-specific logic will no longer happen during boot
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#bootstrap-scripts" class="md-nav__link">
    Bootstrap Scripts
  </a>
  
    <nav class="md-nav" aria-label="Bootstrap Scripts">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#registering-ievent-listeners" class="md-nav__link">
    Registering IEvent listeners
  </a>
  
</li>
        
      </ul>
    </nav>
  
</li>
        
      </ul>
    </nav>
  
</li>
      
        <li class="md-nav__item">
  <a href="#package-system" class="md-nav__link">
    Package System
  </a>
  
    <nav class="md-nav" aria-label="Package System">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#required-minversion-for-required-packages" class="md-nav__link">
    Required “minversion” for required packages
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#rejection-of-pl-versions" class="md-nav__link">
    Rejection of “pl” versions
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#removal-of-api-compatibility" class="md-nav__link">
    Removal of API compatibility
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#package-installation-plugins" class="md-nav__link">
    Package Installation Plugins
  </a>
  
    <nav class="md-nav" aria-label="Package Installation Plugins">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#database" class="md-nav__link">
    Database
  </a>
  
</li>
        
      </ul>
    </nav>
  
</li>
        
      </ul>
    </nav>
  
</li>
      
        <li class="md-nav__item">
  <a href="#indicating-parameters-that-hold-sensitive-information" class="md-nav__link">
    Indicating parameters that hold sensitive information
  </a>
  
</li>
      
        <li class="md-nav__item">
  <a href="#conditions" class="md-nav__link">
    Conditions
  </a>
  
    <nav class="md-nav" aria-label="Conditions">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#abstractintegercondition" class="md-nav__link">
    AbstractIntegerCondition
  </a>
  
</li>
        
      </ul>
    </nav>
  
</li>
      
    </ul>
  
</nav>
      
    </li>
  

    <li class="md-nav__item">
      <a href="../javascript/" class="md-nav__link">
        TypeScript and JavaScript
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../templates/" class="md-nav__link">
        Templates
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../icons/" class="md-nav__link">
        Icons
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../dialogs/" class="md-nav__link">
        Dialogs
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../libraries/" class="md-nav__link">
        Third Party Libraries
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../deprecations_removals/" class="md-nav__link">
        Deprecations and Removals
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_2" type="checkbox" id="__nav_6_2" >
      
      
        <label class="md-nav__link" for="__nav_6_2">
          From WoltLab Suite 5.4
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="From WoltLab Suite 5.4" data-md-level="2">
        <label class="md-nav__title" for="__nav_6_2">
          <span class="md-nav__icon md-icon"></span>
          From WoltLab Suite 5.4
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../wsc54/php/" class="md-nav__link">
        PHP API
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc54/javascript/" class="md-nav__link">
        TypeScript and JavaScript
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc54/templates/" class="md-nav__link">
        Templates
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc54/libraries/" class="md-nav__link">
        Third Party Libraries
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc54/deprecations_removals/" class="md-nav__link">
        Deprecations and Removals
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_3" type="checkbox" id="__nav_6_3" >
      
      
        <label class="md-nav__link" for="__nav_6_3">
          From WoltLab Suite 5.3
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="From WoltLab Suite 5.3" data-md-level="2">
        <label class="md-nav__title" for="__nav_6_3">
          <span class="md-nav__icon md-icon"></span>
          From WoltLab Suite 5.3
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../wsc53/php/" class="md-nav__link">
        PHP API
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc53/session/" class="md-nav__link">
        Session Handling and Authentication
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc53/javascript/" class="md-nav__link">
        TypeScript and JavaScript
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc53/templates/" class="md-nav__link">
        Templates
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc53/libraries/" class="md-nav__link">
        Third Party Libraries
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_4" type="checkbox" id="__nav_6_4" >
      
      
        <label class="md-nav__link" for="__nav_6_4">
          From WoltLab Suite 5.2
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="From WoltLab Suite 5.2" data-md-level="2">
        <label class="md-nav__title" for="__nav_6_4">
          <span class="md-nav__icon md-icon"></span>
          From WoltLab Suite 5.2
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../wsc52/php/" class="md-nav__link">
        PHP API
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc52/templates/" class="md-nav__link">
        Templates and Languages
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc52/libraries/" class="md-nav__link">
        Third Party Libraries
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_5" type="checkbox" id="__nav_6_5" >
      
      
        <label class="md-nav__link" for="__nav_6_5">
          From WoltLab Suite 3.1
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="From WoltLab Suite 3.1" data-md-level="2">
        <label class="md-nav__title" for="__nav_6_5">
          <span class="md-nav__icon md-icon"></span>
          From WoltLab Suite 3.1
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../wsc31/php/" class="md-nav__link">
        PHP API
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_6" type="checkbox" id="__nav_6_6" >
      
      
        <label class="md-nav__link" for="__nav_6_6">
          From WoltLab Suite 3.0
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="From WoltLab Suite 3.0" data-md-level="2">
        <label class="md-nav__title" for="__nav_6_6">
          <span class="md-nav__icon md-icon"></span>
          From WoltLab Suite 3.0
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../wsc30/php/" class="md-nav__link">
        PHP API
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc30/javascript/" class="md-nav__link">
        JavaScript API
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc30/templates/" class="md-nav__link">
        Templates
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc30/css/" class="md-nav__link">
        CSS
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wsc30/package/" class="md-nav__link">
        Package Components
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6_7" type="checkbox" id="__nav_6_7" >
      
      
        <label class="md-nav__link" for="__nav_6_7">
          From WCF 2.1
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="From WCF 2.1" data-md-level="2">
        <label class="md-nav__title" for="__nav_6_7">
          <span class="md-nav__icon md-icon"></span>
          From WCF 2.1
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../wcf21/php/" class="md-nav__link">
        PHP API
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wcf21/templates/" class="md-nav__link">
        Templates
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wcf21/css/" class="md-nav__link">
        CSS
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../wcf21/package/" class="md-nav__link">
        Package Components
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

        </ul>
      </nav>
    </li>
  

    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_7" type="checkbox" id="__nav_7" >
      
      
        <label class="md-nav__link" for="__nav_7">
          Tutorials
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="Tutorials" data-md-level="1">
        <label class="md-nav__title" for="__nav_7">
          <span class="md-nav__icon md-icon"></span>
          Tutorials
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item md-nav__item--nested">
      
      
        <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_7_1" type="checkbox" id="__nav_7_1" >
      
      
        <label class="md-nav__link" for="__nav_7_1">
          Tutorial Series
          <span class="md-nav__icon md-icon"></span>
        </label>
      
      <nav class="md-nav" aria-label="Tutorial Series" data-md-level="2">
        <label class="md-nav__title" for="__nav_7_1">
          <span class="md-nav__icon md-icon"></span>
          Tutorial Series
        </label>
        <ul class="md-nav__list" data-md-scrollfix>
          
            
    <li class="md-nav__item">
      <a href="../../../tutorial/series/overview/" class="md-nav__link">
        Overview
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../tutorial/series/part_1/" class="md-nav__link">
        Part 1
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../tutorial/series/part_2/" class="md-nav__link">
        Part 2
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../tutorial/series/part_3/" class="md-nav__link">
        Part 3
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../tutorial/series/part_4/" class="md-nav__link">
        Part 4
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../tutorial/series/part_5/" class="md-nav__link">
        Part 5
      </a>
    </li>
  

    <li class="md-nav__item">
      <a href="../../../tutorial/series/part_6/" class="md-nav__link">
        Part 6
      </a>
    </li>
  

        </ul>
      </nav>
    </li>
  

        </ul>
      </nav>
    </li>
  

  </ul>
</nav>
                  </div>
                </div>
              </div>
            
            
              <div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
                <div class="md-sidebar__scrollwrap">
                  <div class="md-sidebar__inner">
                    

<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
  
  
    <label class="md-nav__title" for="__toc">
      <span class="md-nav__icon md-icon"></span>
      Table of contents
    </label>
    <ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
      
        <li class="md-nav__item">
  <a href="#minimum-requirements" class="md-nav__link">
    Minimum requirements
  </a>
  
</li>
      
        <li class="md-nav__item">
  <a href="#inheritance" class="md-nav__link">
    Inheritance
  </a>
  
    <nav class="md-nav" aria-label="Inheritance">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#parameter-return-property-types" class="md-nav__link">
    Parameter / Return / Property Types
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#final" class="md-nav__link">
    final
  </a>
  
</li>
        
      </ul>
    </nav>
  
</li>
      
        <li class="md-nav__item">
  <a href="#application-boot" class="md-nav__link">
    Application Boot
  </a>
  
    <nav class="md-nav" aria-label="Application Boot">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#request-specific-logic-will-no-longer-happen-during-boot" class="md-nav__link">
    Request-specific logic will no longer happen during boot
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#bootstrap-scripts" class="md-nav__link">
    Bootstrap Scripts
  </a>
  
    <nav class="md-nav" aria-label="Bootstrap Scripts">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#registering-ievent-listeners" class="md-nav__link">
    Registering IEvent listeners
  </a>
  
</li>
        
      </ul>
    </nav>
  
</li>
        
      </ul>
    </nav>
  
</li>
      
        <li class="md-nav__item">
  <a href="#package-system" class="md-nav__link">
    Package System
  </a>
  
    <nav class="md-nav" aria-label="Package System">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#required-minversion-for-required-packages" class="md-nav__link">
    Required “minversion” for required packages
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#rejection-of-pl-versions" class="md-nav__link">
    Rejection of “pl” versions
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#removal-of-api-compatibility" class="md-nav__link">
    Removal of API compatibility
  </a>
  
</li>
        
          <li class="md-nav__item">
  <a href="#package-installation-plugins" class="md-nav__link">
    Package Installation Plugins
  </a>
  
    <nav class="md-nav" aria-label="Package Installation Plugins">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#database" class="md-nav__link">
    Database
  </a>
  
</li>
        
      </ul>
    </nav>
  
</li>
        
      </ul>
    </nav>
  
</li>
      
        <li class="md-nav__item">
  <a href="#indicating-parameters-that-hold-sensitive-information" class="md-nav__link">
    Indicating parameters that hold sensitive information
  </a>
  
</li>
      
        <li class="md-nav__item">
  <a href="#conditions" class="md-nav__link">
    Conditions
  </a>
  
    <nav class="md-nav" aria-label="Conditions">
      <ul class="md-nav__list">
        
          <li class="md-nav__item">
  <a href="#abstractintegercondition" class="md-nav__link">
    AbstractIntegerCondition
  </a>
  
</li>
        
      </ul>
    </nav>
  
</li>
      
    </ul>
  
</nav>
                  </div>
                </div>
              </div>
            
          
            <div class="md-content" data-md-component="content">
              <article class="md-content__inner md-typeset">
                
                  
  <a href="https://github.com/WoltLab/docs.woltlab.com/edit/6.0/docs/migration/wsc55/php.md" title="Edit this page" class="md-content__button md-icon">
    
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20.71 7.04c.39-.39.39-1.04 0-1.41l-2.34-2.34c-.37-.39-1.02-.39-1.41 0l-1.84 1.83 3.75 3.75M3 17.25V21h3.75L17.81 9.93l-3.75-3.75L3 17.25Z"/></svg>
  </a>


<h1 id="migrating-from-woltlab-suite-55-php">Migrating from WoltLab Suite 5.5 - PHP<a class="headerlink" href="#migrating-from-woltlab-suite-55-php" title="Permanent link">#</a></h1>
<h2 id="minimum-requirements">Minimum requirements<a class="headerlink" href="#minimum-requirements" title="Permanent link">#</a></h2>
<p>The minimum requirements have been increased to the following:</p>
<ul>
<li><strong>PHP:</strong> 8.1.2 (64 bit only); <code>intl</code> extension</li>
<li><strong>MySQL:</strong> 8.0.29</li>
<li><strong>MariaDB:</strong> 10.5.12</li>
</ul>
<p>It is recommended to make use of the newly introduced features whereever possible.
Please refer to the PHP documentation for details.</p>
<h2 id="inheritance">Inheritance<a class="headerlink" href="#inheritance" title="Permanent link">#</a></h2>
<h3 id="parameter-return-property-types">Parameter / Return / Property Types<a class="headerlink" href="#parameter-return-property-types" title="Permanent link">#</a></h3>
<p>Parameter, return, and property types have been added to methods of various classes/interfaces.
This might cause errors during inheritance, because the types are not compatible with the newly added types in the parent class.</p>
<p>Return types may already be added in package versions for older WoltLab Suite branches to be forward compatible, because return types are covariant.</p>
<h3 id="final">final<a class="headerlink" href="#final" title="Permanent link">#</a></h3>
<p>The <code>final</code> modifier was added to several classes that were not usefully set up for inheritance in the first place to make it explicit that inheriting from these classes is unsupported.</p>
<h2 id="application-boot">Application Boot<a class="headerlink" href="#application-boot" title="Permanent link">#</a></h2>
<h3 id="request-specific-logic-will-no-longer-happen-during-boot">Request-specific logic will no longer happen during boot<a class="headerlink" href="#request-specific-logic-will-no-longer-happen-during-boot" title="Permanent link">#</a></h3>
<p>Historically the application boot in <code>WCF</code>’s constructor performed processing based on fundamentally request-specific values, such as the accessed URL, the request body, or cookies.
This is problematic, because this makes the boot dependent on the HTTP environment which may not be be available, e.g. when using the CLI interface for maintenance jobs.
The latter needs to emulate certain aspects of the HTTP environment for the boot to succeed.
Furthermore one of the goals of the introduction of PSR-7/PSR-15-based request processing that <a href="../../wsc54/php/#initial-psr-7-support">was started in WoltLab Suite 5.5</a> is the removal of implicit global state in favor of explicitly provided values by means of a <code>ServerRequestInterface</code> and thus to achieve a cleaner architecture.</p>
<p>To achieve a clean separation this type of request-specific logic will incrementally be moved out of the application boot in <code>WCF</code>’s constructor and into the request processing stack that is launched by <code>RequestHandler</code>, e.g. by running appropriate PSR-15 middleware.</p>
<p>An example of this type of request-specific logic that was previously happening during application boot is the check that verifies whether a user is banned and denies access otherwise.
This check is based on a request-specific value, namely the user’s session which in turn is based on a provided (HTTP) cookie.
It is now <a href="https://github.com/WoltLab/WCF/commit/51154ba3f8f1d09b54560d5d1933f9053ef409cb">moved into the <code>CheckUserBan</code> middleware</a>.</p>
<p>This move implies that custom scripts that include WoltLab Suite Core’s <code>global.php</code>, without also invoking <code>RequestHandler</code> will no longer be able to rely on this type of access control having happened and will need to implement it themselves, e.g. by manually running the appropriate middlewares.</p>
<p>Notably the following checks have been moved into a middleware:</p>
<ul>
<li>Denying access to banned users (<a href="https://github.com/WoltLab/WCF/pull/4935">WoltLab/WCF#4935</a>)</li>
<li>ACP authentication (<a href="https://github.com/WoltLab/WCF/pull/4939">WoltLab/WCF#4939</a>)</li>
</ul>
<p>The initialization of the session itself and dependent subsystems (e.g. the user object and thus the current language) is still running during application boot for now.
However it is planned to also move the session initialization into the middleware in a future version and then providing access to the session by adding an attribute on the <code>ServerRequestInterface</code>, instead of querying the session via <code>WCF::getSession()</code>.
As such you should begin to stop relying on the session and user outside of <code>RequestHandler</code>’s middleware stack and should also avoid calling <code>WCF::getUser()</code> and <code>WCF::getSession()</code> outside of a controller, instead adding a <code>User</code> parameter to your methods to allow an appropriate user to be passed from the outside.</p>
<p>An example of a method that implicitly relies on these global values is the <a href="https://github.com/WoltLab/WCF/blob/7cfd5578ede22e798b770262c0cdf1e9dfe25d36/wcfsetup/install/files/lib/system/visitTracker/VisitTracker.class.php#L199">VisitTracker's <code>trackObjectVisit()</code> method</a>.
It only takes the object type, object ID and timestamp as the parameter and will determine the <code>userID</code> by itself.
The <code>trackObjectVisitByUserIDs()</code> method on the other hand does not rely on global values.
Instead the relevant user IDs need to be passed explicitly from the controller as parameters, thus making the information the method works with explicit.
This also makes the method reusable for use cases where an object should be marked as visited for a user other than the active user, without needing to temporarily switch the active user in the session.</p>
<p>The same is true for “permission checking” methods on <code>DatabaseObject</code>s.
Instead of having a <code>$myObject-&gt;canView()</code> method that uses <code>WCF::getSession()</code> or <code>WCF::getUser()</code> internally, the user should explicitly be passed to the method as a parameter, allowing for permission checks to happen in a different context, for example send sending notification emails.</p>
<p>Likewise event listeners should not access these request-specific values at all, because they are unable to know whether the event was fired based on these request-specific values or whether some programmatic action fired the event for another arbitrary user.
Instead they must retrieve the appropriate information from the event data only.</p>
<h3 id="bootstrap-scripts">Bootstrap Scripts<a class="headerlink" href="#bootstrap-scripts" title="Permanent link">#</a></h3>
<p>WoltLab Suite 6.0 adds package-specific bootstrap scripts allowing a package to execute logic during the application boot to prepare the environment before the request is passed through the middleware pipeline into the controller in <code>RequestHandler</code>.</p>
<p>Bootstrap scripts are stored in the <code>lib/bootstrap/</code> directory of WoltLab Suite Core with the package identifier as the file name.
They do not need to be registered explicitly, as one future goal of the bootstrap scripts is reducing the amount of system state that needs to be stored within the database.
Instead WoltLab Suite Core will automatically create a bootstrap loader that includes all installed bootstrap scripts as part of the package installation and uninstallation process.</p>
<p>Bootstrap scripts will be loaded and the bootstrap functions will executed based on a topological sorting of all installed packages.
A package can rely on all bootstrap scripts of its dependencies being loaded before its own bootstrap script is loaded.
It can also rely on all bootstrap functions of its dependencies having executed before its own bootstrap functions is executed.
However it cannot rely on any specific loading and execution order of non-dependencies.</p>
<p>As hinted at in the previous paragraph, executing the bootstrap scripts happens in two phases:</p>
<ol>
<li>All bootstrap scripts will be <code>include()</code>d in topological order. The script is expected to return a <code>Closure</code> that is executed in phase 2.</li>
<li>Once all bootstrap scripts have been included, the returned <code>Closure</code>s will be executed in the same order the bootstrap scripts were loaded.</li>
</ol>
<div class="highlight"><table class="highlighttable"><tr><th colspan="2" class="filename"><span class="filename">files/lib/bootstrap/com.example.foo.php</span></th></tr><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span>
<span class="normal">6</span>
<span class="normal">7</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="o">&lt;?</span><span class="nx">php</span>

<span class="c1">// Phase (1).</span>

<span class="k">return</span> <span class="k">static</span> <span class="k">function</span> <span class="p">()</span><span class="o">:</span> <span class="nx">void</span> <span class="p">{</span>
    <span class="c1">// Phase (2).</span>
<span class="p">};</span>
</code></pre></div></td></tr></table></div>
<p>For the vast majority of packages it is expected that the phase (1) bootstrapping is not used, except to return the <code>Closure</code>.
Instead the logic should reside in the <code>Closure</code>s body that is executed in phase (2).</p>
<h4 id="registering-ievent-listeners">Registering <code>IEvent</code> listeners<a class="headerlink" href="#registering-ievent-listeners" title="Permanent link">#</a></h4>
<p>An example use case for bootstrap scripts with WoltLab Suite 6.0 is registering event listeners for <code>IEvent</code>-based events that <a href="../../wsc54/php/#events">were added with WoltLab Suite 5.5</a>, instead of using the <a href="../../../package/pip/event-listener/">eventListener PIP</a>.
Registering event listeners within the bootstrap script allows you to leverage your IDE’s autocompletion for class names and and prevents forgetting the explicit uninstallation of old event listeners during a package upgrade.</p>
<div class="highlight"><table class="highlighttable"><tr><th colspan="2" class="filename"><span class="filename">files/lib/bootstrap/com.example.bar.php</span></th></tr><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span>
<span class="normal">11</span>
<span class="normal">12</span>
<span class="normal">13</span>
<span class="normal">14</span>
<span class="normal">15</span>
<span class="normal">16</span>
<span class="normal">17</span>
<span class="normal">18</span>
<span class="normal">19</span>
<span class="normal">20</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="o">&lt;?</span><span class="nx">php</span>

<span class="k">use</span> <span class="nx">wcf\system\event\EventHandler</span><span class="p">;</span>
<span class="k">use</span> <span class="nx">wcf\system\event\listener\ValueDumpListener</span><span class="p">;</span>
<span class="k">use</span> <span class="nx">wcf\system\foo\event\ValueAvailable</span><span class="p">;</span>

<span class="k">return</span> <span class="k">static</span> <span class="k">function</span> <span class="p">()</span><span class="o">:</span> <span class="nx">void</span> <span class="p">{</span>
    <span class="nx">EventHandler</span><span class="o">::</span><span class="na">getInstance</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">register</span><span class="p">(</span>
        <span class="nx">ValueAvailable</span><span class="o">::</span><span class="na">class</span><span class="p">,</span>
        <span class="nx">ValueDumpListener</span><span class="o">::</span><span class="na">class</span>
    <span class="p">);</span>

    <span class="nx">EventHandler</span><span class="o">::</span><span class="na">getInstance</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">register</span><span class="p">(</span>
        <span class="nx">ValueAvailable</span><span class="o">::</span><span class="na">class</span><span class="p">,</span>
        <span class="k">static</span> <span class="k">function</span> <span class="p">(</span><span class="nx">ValueAvailable</span> <span class="nv">$event</span><span class="p">)</span><span class="o">:</span> <span class="nx">void</span> <span class="p">{</span>
            <span class="c1">// For simple use cases a `Closure` instead of a class name may be used.</span>
            <span class="nx">\var_dump</span><span class="p">(</span><span class="nv">$event</span><span class="o">-&gt;</span><span class="na">getValue</span><span class="p">());</span>
        <span class="p">}</span>
    <span class="p">);</span>
<span class="p">};</span>
</code></pre></div></td></tr></table></div>
<h2 id="package-system">Package System<a class="headerlink" href="#package-system" title="Permanent link">#</a></h2>
<h3 id="required-minversion-for-required-packages">Required “minversion” for required packages<a class="headerlink" href="#required-minversion-for-required-packages" title="Permanent link">#</a></h3>
<p>The <code>minversion</code> attribute of the <code>&lt;requiredpackage&gt;</code> tag is now required.</p>
<h3 id="rejection-of-pl-versions">Rejection of “pl” versions<a class="headerlink" href="#rejection-of-pl-versions" title="Permanent link">#</a></h3>
<p>Woltlab Suite 6.0 no longer accepts package versions with the “pl” suffix as valid.</p>
<h3 id="removal-of-api-compatibility">Removal of API compatibility<a class="headerlink" href="#removal-of-api-compatibility" title="Permanent link">#</a></h3>
<p>WoltLab Suite 6.0 removes support for the deprecated API compatibility functionality.
Any packages with a <code>&lt;compatibility&gt;</code> tag in their package.xml are assumed to not have been updated for WoltLab Suite 6.0 and will be rejected during installation.
Furthermore any packages without an explicit requirement for <code>com.woltlab.wcf</code> in at least version <code>5.4.22</code> are also assumed to not have been updated for WoltLab Suite 6.0 and will also be rejected.
The latter check is intended to reject old and most likely incompatible packages where the author forgot to add either an <code>&lt;excludedpackage&gt;</code> or a <code>&lt;compatibility&gt;</code> tag before releasing it.</p>
<h3 id="package-installation-plugins">Package Installation Plugins<a class="headerlink" href="#package-installation-plugins" title="Permanent link">#</a></h3>
<h4 id="database">Database<a class="headerlink" href="#database" title="Permanent link">#</a></h4>
<p>The <code>$name</code> parameter of <code>DatabaseTableIndex::create()</code> is no longer optional.
Relying on the auto-generated index name is strongly discouraged, because of unfixable inconsistent behavior between the SQL PIP and the PHP DDL API.
See <a href="https://github.com/WoltLab/WCF/issues/4505">WoltLab/WCF#4505</a> for further background information.</p>
<p>The autogenerated name can still be requested by passing an empty string as the <code>$name</code>.
This should only be done for backwards compatibility purposes and to migrate an index with an autogenerated name to an index with an explicit name.
An example script can be found in <a href="https://github.com/WoltLab/com.woltlab.wcf.conversation/commit/a33677ca051f76e1ddda1de7f8dc62a5484de16e">WoltLab/com.woltlab.wcf.conversation@a33677ca051f</a>.</p>
<h2 id="indicating-parameters-that-hold-sensitive-information">Indicating parameters that hold sensitive information<a class="headerlink" href="#indicating-parameters-that-hold-sensitive-information" title="Permanent link">#</a></h2>
<p>PHP 8.2 adds native support for redacting parameters holding sensitive information in stack traces.
Parameters with the <code>#[\SensitiveParameter]</code> attribute will show a placeholder value within the stack trace and the error log.</p>
<p>WoltLab Suite’s exception handler contains logic to manually apply the sanitization for PHP versions before 8.2.</p>
<p>It is strongly recommended to add this attribute to all parameters holding sensitive information.
Examples for sensitive parameters include passwords/passphrases, access tokens, plaintext values to be encrypted, or private keys.</p>
<p>As attributes are fully backwards and forwards compatible it is possible to apply the attribute to packages targeting older WoltLab Suite or PHP versions without causing errors.</p>
<p>Example:</p>
<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span>
<span class="normal">6</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="k">function</span> <span class="nf">checkPassword</span><span class="p">(</span>
    <span class="c1">#[\SensitiveParameter]</span>
    <span class="nv">$password</span><span class="p">,</span>
<span class="p">)</span><span class="o">:</span> <span class="nx">bool</span> <span class="p">{</span>
    <span class="c1">// …</span>
<span class="p">}</span>
</code></pre></div></td></tr></table></div>
<p>See the <a href="https://wiki.php.net/rfc/redact_parameters_in_back_traces">PHP RFC: Redacting parameters in back traces</a> for more details.</p>
<h2 id="conditions">Conditions<a class="headerlink" href="#conditions" title="Permanent link">#</a></h2>
<h3 id="abstractintegercondition">AbstractIntegerCondition<a class="headerlink" href="#abstractintegercondition" title="Permanent link">#</a></h3>
<p>Deriving from <code>AbstractIntegerCondition</code> now requires to explicitly implement <code>protected function getIdentifier(): string</code>, instead of setting the <code>$identifier</code> property.
This is to ensure that all conditions specify a unique identifier, instead of accidentally relying on a default value.
The <code>$identifier</code> property will no longer be used and may be removed.</p>
<p>See <a href="https://github.com/WoltLab/WCF/pull/5077">WoltLab/WCF#5077</a> for details.</p>

  <hr>
<div class="md-source-file">
  <small>
    
      Last update:
      2022-11-02
    
  </small>
</div>


              </article>
            </div>
          
          
        </div>
        
      </main>
      
        <footer class="md-footer">
  
    
    <nav class="md-footer__inner md-grid" aria-label="Footer" >
      
        
        <a href="../../../package/database-php-api/" class="md-footer__link md-footer__link--prev" aria-label="Previous: Database PHP API" rel="prev">
          <div class="md-footer__button md-icon">
            <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z"/></svg>
          </div>
          <div class="md-footer__title">
            <div class="md-ellipsis">
              <span class="md-footer__direction">
                Previous
              </span>
              Database PHP API
            </div>
          </div>
        </a>
      
      
        <a href="../javascript/" class="md-footer__link md-footer__link--next" aria-label="Next: TypeScript and JavaScript" rel="next">
          <div class="md-footer__title">
            <div class="md-ellipsis">
              <span class="md-footer__direction">
                Next
              </span>
              TypeScript and JavaScript
            </div>
          </div>
          <div class="md-footer__button md-icon">
            <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11H4Z"/></svg>
          </div>
        </a>
      
    </nav>
  
  <div class="md-footer-meta md-typeset">
    <div class="md-footer-meta__inner md-grid">
      <div class="md-copyright">
  
    <div class="md-copyright__highlight">
      Copyright © 2020 WoltLab GmbH
    </div>
  
  
    Made with
    <a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
      Material for MkDocs
    </a>
  
</div>
      
        <div class="md-copyright">
	<a href="https://www.woltlab.com/legal-notice/">Legal Notice</a> 
	<a href="https://www.woltlab.com/privacy-policy/">Privacy Policy</a>
</div>
      
    </div>
  </div>
</footer>
      
    </div>
    <div class="md-dialog" data-md-component="dialog">
      <div class="md-dialog__inner md-typeset"></div>
    </div>
    
    <script id="__config" type="application/json">{"base": "../../..", "features": ["navigation.tracking"], "search": "../../../assets/javascripts/workers/search.16e2a7d4.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.placeholder": "Search", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version.title": "Select version"}, "version": {"provider": "mike"}}</script>
    
    
      <script src="../../../assets/javascripts/bundle.8492ddcf.min.js"></script>
      
    
  </body>
</html>