Internal: Fix deprecated calls to mb_convert_encoding() to encode to HTML entities. Helps support PHP 8.3

Author: ywarnier

main/inc/lib/internationalization.lib.php

@@ -1207,7 +1207,7 @@ function api_htmlentities($string, $quote_style = ENT_COMPAT, $encoding = 'UTF-8
             break;
     }
 
-    return mb_convert_encoding($string, 'HTML-ENTITIES', 'UTF-8');
+    return htmlentities($string, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
 }
 
 /**

main/inc/lib/xajax/xajaxResponse.inc.php

@@ -542,7 +542,7 @@ public function _cmdXML($aAttributes, $sData)
             } //if (function_exists('mb_convert_encoding')) {
             elseif (function_exists('mb_convert_encoding')) {
                 //
-                $sData = call_user_func_array('mb_convert_encoding', array(&$sData, 'HTML-ENTITIES', $this->sEncoding));
+                $sData = call_user_func_array('htmlentities', array(&$sData, ENT_QUOTES | ENT_SUBSTITUTE, $this->sEncoding));
             } else {
                 trigger_error(
                     "The xajax XML response output could not be converted to HTML entities because the mb_convert_encoding function is not available",

plugin/migrationmoodle/src/Transformer/Property/ReplaceFilePaths.php

@@ -28,7 +28,7 @@ public function transform(array $data)
 
         $doc = new \DOMDocument();
         $doc->loadHTML(
-            mb_convert_encoding($content, 'HTML-ENTITIES', 'UTF-8')
+            htmlentities($content, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8')
         );
 
         foreach ($doc->getElementsByTagName('img') as $img) {