PHP is_numeric or preg_match 0-9 validation

Question

This isn\'t a big issue for me (as far as I\'m aware), it\'s more of something that\'s interested me. But what is the main difference, if any, of using is_numeric

Answer 1

You can use this code for number validation:

if (!preg_match("/^[0-9]+$/i", $phone)) {
        $errorMSG = 'Invalid Number!';
        $error    = 1;
    }