note 107419 added to language.types.type-juggling

namaroulis stated "I found it tricky to check if a posted value was an integer"; to test if a variable is a number or a numeric string (such as form input, which is always a string), you must use is_numeric(): <?php $_POST['a'] = "42"; is_numeric( $_POST['a'] ); // true ?> ---- Server IP: 69.147.83.197 Probable Submitter: 72.219.151.91 ---- Manual Page -- http://www.php.net/manual/en/language.types.type-juggling.php Edit -- https://master.php.net/note/edit/107419 Del: integrated -- https://master.php.net/note/delete/107419/integrated Del: useless -- https://master.php.net/note/delete/107419/useless Del: bad code -- https://master.php.net/note/delete/107419/bad+code Del: spam -- https://master.php.net/note/delete/107419/spam Del: non-english -- https://master.php.net/note/delete/107419/non-english Del: in docs -- https://master.php.net/note/delete/107419/in+docs Del: other reasons-- https://master.php.net/note/delete/107419 Reject -- https://master.php.net/note/reject/107419 Search -- https://master.php.net/manage/user-notes.php