CakePHP, Crud infinity test

infinity-test.php

<?php
function _castNumbers($variable) {
  if (!is_numeric($variable)) {
    return $variable;
  }

  $number = $variable + 0;

  // Check if number is below infinity
  return ($number < INF) ? $number : $variable;
}

$data = array(
  'string' => 'abcdef',
  'infinity' => '0113870020e12235',
  'integer' => 1234
);

foreach ($data as $key => $value) {
  print $key . "\n";
  print _castNumbers($value) . "\n";
  print "\n";
}