Add explicit `return null;` statements

[GitHub/WoltLab/WCF.git] / wcfsetup / install / files / lib / system / package / PackageInstallationSQLParser.class.php

diff --git a/wcfsetup/install/files/lib/system/package/PackageInstallationSQLParser.class.php b/wcfsetup/install/files/lib/system/package/PackageInstallationSQLParser.class.php
index 1d53f96ebfd119c63c88aa1da4eab29a96d54962..469aa244033af47303f33a1ee6cbdc67d10bb7cc 100644 (file)
--- a/wcfsetup/install/files/lib/system/package/PackageInstallationSQLParser.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageInstallationSQLParser.class.php
@@ -214,7 +214,7 @@ class PackageInstallationSQLParser extends SQLParser
      *
      * @param string $tableName
      * @param string $columnName
-     * @return  int     package id
+     * @return  int|null     package id
      */
     protected function getColumnOwnerID($tableName, $columnName)
     {
@@ -233,7 +233,7 @@ class PackageInstallationSQLParser extends SQLParser
         } elseif (isset($this->knownTables[$tableName])) {
             return $this->knownTables[$tableName];
         } else {
-            return;
+            return null;
         }
     }