note 54522 added to ref.errorfunc

I would like a warning to be triggered whenever a single equal sign is used in a condition, eg: if( $a = 100 ) { } Does anyone know if this is possible? ---- Manual Page -- http://www.php.net/manual/en/ref.errorfunc.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+54522 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+54522&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+54522&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+54522&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+54522&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+54522&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+54522&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+54522&report=yes Search -- http://master.php.net/manage/user-notes.php