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                  <a href="https://github.com/WoltLab/docs.woltlab.com/edit/5.4/docs/package/pip/pip.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>
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                <h1 id="package-installation-plugin-package-installation-plugin">Package Installation Plugin Package Installation Plugin<a class="headerlink" href="#package-installation-plugin-package-installation-plugin" title="Permanent link">#</a></h1>
<p>Registers new package installation plugins.</p>
<h2 id="components">Components<a class="headerlink" href="#components" title="Permanent link">#</a></h2>
<p>Each package installation plugin is described as an <code>&lt;pip&gt;</code> element with a <code>name</code> attribute and a PHP classname as the text content.</p>
<div class="admonition warning">
<p class="admonition-title">The package installation plugin’s class file must be installed into the <code>wcf</code> application and must not include classes outside the <code>\wcf\*</code> hierarchy to allow for proper uninstallation!</p>
</div>
<h2 id="example">Example<a class="headerlink" href="#example" title="Permanent link">#</a></h2>
<div class="highlight"><pre><span></span><code><span class="cp">&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;</span>
<span class="nt">&lt;data</span> <span class="na">xmlns=</span><span class="s">&quot;http://www.woltlab.com&quot;</span> <span class="na">xmlns:xsi=</span><span class="s">&quot;http://www.w3.org/2001/XMLSchema-instance&quot;</span> <span class="na">xsi:schemaLocation=</span><span class="s">&quot;http://www.woltlab.com http://www.woltlab.com/XSD/2019/packageInstallationPlugin.xsd&quot;</span><span class="nt">&gt;</span>
    <span class="nt">&lt;import&gt;</span>
        <span class="nt">&lt;pip</span> <span class="na">name=</span><span class="s">&quot;custom&quot;</span><span class="nt">&gt;</span>wcf\system\package\plugin\CustomPackageInstallationPlugin<span class="nt">&lt;/pip&gt;</span>
    <span class="nt">&lt;/import&gt;</span>
    <span class="nt">&lt;delete&gt;</span>
        <span class="nt">&lt;pip</span> <span class="na">name=</span><span class="s">&quot;outdated&quot;</span> <span class="nt">/&gt;</span>
    <span class="nt">&lt;/delete&gt;</span>
<span class="nt">&lt;/data&gt;</span>
</code></pre></div>
                
                  
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