note 78596 added to function.empty

If you are writing a form handling script and just need to check whether a required field has been filled in, you can just use strlen() to check the field. It handles all the cases properly when you are only dealing with strings. $x = "0"; echo strlen($x); // returns 1 $x = ""; echo strlen($x); // returns 0 unset $x echo strlen($x); // returns 0 In other words, the check you need to make becomes: if (strlen($email) == 0) $error = "Please enter your email address"; or if (strlen($_POST["email"]) == 0) $error = "Please enter your email address"; Hopes this helps anyone just seeking a workaround for the annoying empty("0") anomaly. ---- Server IP: 203.89.181.186 Probable Submitter: 121.72.242.206 ---- Manual Page -- http://www.php.net/manual/en/function.empty.php Edit -- https://master.php.net/note/edit/78596 Del: integrated -- https://master.php.net/note/delete/78596/integrated Del: useless -- https://master.php.net/note/delete/78596/useless Del: bad code -- https://master.php.net/note/delete/78596/bad+code Del: spam -- https://master.php.net/note/delete/78596/spam Del: non-english -- https://master.php.net/note/delete/78596/non-english Del: in docs -- https://master.php.net/note/delete/78596/in+docs Del: other reasons-- https://master.php.net/note/delete/78596 Reject -- https://master.php.net/note/reject/78596 Search -- https://master.php.net/manage/user-notes.php