Prefer anonymous function over create_function()

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@330241 c90b9560-bf6c-de11-be94-00142212c4b1

reference/pcre/functions/preg-replace-callback.xml

@@ -66,7 +66,7 @@
       <para>
        <example>
         <title><function>preg_replace_callback</function> and 
-        <function>create_function</function></title>
+        anonymous function</title>
         <programlisting role="php">
 <![CDATA[
 <?php
@@ -77,12 +77,9 @@ while (!feof($fp)) {
     $line = fgets($fp);
     $line = preg_replace_callback(
         '|<p>\s*\w|',
-        create_function(
-            // single quotes are essential here,
-            // or alternative escape all $ as \$
-            '$matches',
-            'return strtolower($matches[0]);'
-        ),
+        function ($matches) {
+            return strtolower($matches[0]);
+        },
         $line
     );
     echo $line;