Check if a value is a number, if it is print it out and keep going, other wise return FALSE

PHP IS_NUMBER

<?php

/**
 * Check if a value is a number, if it is print it out and keep going, other wise return FALSE
 *
 * @param (string) $number
 * @return (mixed) boolean/$number
 */
function is_number($number) {

  if (is_numeric($number)) {
    return $number;
  }

  return FALSE;
}