note 118549 added to function.is-numeric

check if given string is mobile number function filterNumber($str) { //remove non number $count = strlen($str); $newNumber = ""; for($i = 0; $i<$count; $i++) { if(is_numeric($str[$i])) $newNumber .= $str[$i]; } //removes leading 0s $newNumber = ltrim($newNumber, '0'); //remove 91 in starting, 91 is specific to Indian Numbers if(strlen($newNumber) == 12) { if(substr($newNumber, 0, 2) == '91') $newNumber = substr($newNumber, 2); } //final check for length 10 if(strlen($newNumber) != 10 ) return null; else return $newNumber; } ---- Server IP: 72.52.91.14 Probable Submitter: 182.77.56.241 ---- Manual Page -- http://php.net/manual/en/function.is-numeric.php Edit -- https://master.php.net/note/edit/118549 Del: integrated -- https://master.php.net/note/delete/118549/integrated Del: useless -- https://master.php.net/note/delete/118549/useless Del: bad code -- https://master.php.net/note/delete/118549/bad+code Del: spam -- https://master.php.net/note/delete/118549/spam Del: non-english -- https://master.php.net/note/delete/118549/non-english Del: in docs -- https://master.php.net/note/delete/118549/in+docs Del: other reasons-- https://master.php.net/note/delete/118549 Reject -- https://master.php.net/note/reject/118549 Search -- https://master.php.net/manage/user-notes.php