Testing random alphanumeric token exercise

home.php

<?php
try
{
	$length = 8;
	$start_time = microtime(TRUE);
	for ($i = 1; $i <= 10000; $i++)
	{
		$token = $this->rand_alphanumeric($length);
		if (strlen($token) !== $length)
			throw new Exception('Token "'.$token.'" length is invalid. token length is '.(strlen($token)).' instead of '.$length);

		if ( ! preg_match('#[0-9]#',$token))
			throw new Exception('Token "'.$token.'" is invalid. token must contain at least 1 digit');

		if ( ! preg_match('#[a-zA-Z]#',$token))
			throw new Exception('Token "'.$token.'" is invalid. token must contain at least 1 letter');
	}

	$execution_time = (float) number_format(microtime(TRUE)-$start_time, 5);
	die("Success! ~~ Execution Time: $execution_time seconds");
}
catch (Exception $e)
{
	die($e->getMessage());
}

Replace "$this->rand_alphanumeric(" with your function.

COol!