gistfile1.php

<?php

//number of people in the reservation
$people = 2;
//time, just the hour, pm
$time = 7;

$url = 'http://www.opentable.com/nextavailabletable.aspx?hpu=1025002033&shpu=1&rid=1180&m=4&d=8/13/2010+'.$time.':00:00+PM&p='.$people;
$data = file_get_contents($url);
$regex = '/\[\'\d{1,2}\/\d{1,2}\/\d{4} \d{1,2}\:\d{2}\:\d{2} PM/';
preg_match_all($regex,$data,$output);

$times = array();
for($i=0;$output[0][$i];$i++){
	$times[]=str_replace("['","",$output[0][$i]);
}
$body='';
if(count($times)>0){
	$to = '[email protected]';
	for($i=0;$times[$i];$i++){
		$body .= $times[$i] . "\n";
	}
	$body .= "\n" . $url;
	$subject = "French Laundry Alert";
	$headers = 'From: [email protected]' . "\r\n" .
	'Reply-To: [email protected]' . "\r\n";
	mail($to, $subject, $body, $headers);
}
?>