Javascript/PHP numbers Only

gistfile1.js

/* Without jQuery */

/*  Example
    <input id="myInput" name='credit-card' value='' />
*/

document.getElementById('myInput').onkeyup = function() {
      this.value = this.value.replace(/[^\d]/gi , '');
};

/* With jQuery */

jQuery('myInput').bind('keyup' , function() {
     $(this).val ( $(this).val().replace(/[^\d]/gi , '') );
});

Javascript

/* Without jQuery */

/*  Example
    <input id="myInput" name='credit-card' value='' />
*/

document.getElementById('myInput').onkeyup = function() {
      this.value = this.value.replace(/[^\d]/gi , '');
};

/* With jQuery */

jQuery('myInput').bind('keyup' , function() {
     $(this).val ( $(this).val().replace(/[^\d]/gi , '') );
});

PHP

<?php 
          function onlynumbers ($var = null) {
                return preg_replace('/[^\d]/i', '', $var); 
          }

          echo onlynumbers("good123"); 
?>


/* This gist was created for a specific task, and mainly to keep the non jquery that it won't be lost somewhere. */
/* This makes use of regular expressions */