Properly refer to the value, not the type

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@343122 c90b9560-bf6c-de11-be94-00142212c4b1

reference/array/functions/current.xml

@@ -109,7 +109,7 @@ var_dump(current($arr)); // array(0) { }
     To still use <function>current</function> and properly check if the value 
     is really an element of the array, the <function>key</function> 
     of the <function>current</function> element should be checked to be strictly 
-    different from <type>null</type>.
+    different from &null;.
    </simpara>
   </note>
  </refsect1>