recording the jobs touched and the number of tries

touched.php

<?php
	$touched = array(
			'pidone' => array('ref' => 'somerefno', 'tries' => 1, 'timestamp' => 1350111444),
			'pidtwo' => array('ref' => 'anotherrefno', 'tries' => 2, 'timestamp' => 1350111527)
		);

	$pid = 'pidtwo';
	$ref = 'refthree';


	function touched(&$touched, $pid, $ref) {
		if (isset($touched[$pid])) {
			if ($touched[$pid]['tries'] >= 3)
				return false;
			else if ((time() - $touched[$pid]['timestamp']) > (24 * 60 * 60))
				return false;
			else
				$touched[$pid]['tries'] = $touched[$pid]['tries'] + 1;
		}
		else
			$touched = array_merge($touched, array($pid => array('ref' => $ref, 'tries' => 1, 'timestamp' => time())));
		return true;
	}

	var_dump(touched($touched, $pid, $ref));
	var_dump($touched);
?>