note 51765 added to function.isset

if you want to check whether the user has sent post vars from a form, it is a pain to write something like the following, since isset() does not check for zero-length strings: if(isset($form_name) && $form_name != '') [...] a shorter way would be this one: if($form_name && $form_message) [...] but this is dirty since you cannot make sure these variables exist and php will echo a warning if you refer to a non-existing variable like this. plus, a string containing "0" will evaluate to FALSE if casted to a boolean. this function will check one or more form values if they are set and do not contain an empty string. it returns false on the first empty or non-existing post var. <? function postvars() { foreach(func_get_args() as $var) { if(!isset($_POST[$var]) || $_POST[$var] === '') return false; } return true; } ?> example: if(postvars('form_name','form_message')) [...] ---- Manual Page -- http://www.php.net/manual/en/function.isset.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+51765 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+51765&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+51765&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+51765&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+51765&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+51765&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+51765&report=yes Search -- http://master.php.net/manage/user-notes.php