Site Pinger

site_pinger.php

<?php
	
function get_url($url) {
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_USERAGENT, "PC Tester Curl");
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
    curl_setopt($ch, CURLOPT_TIMEOUT, 5);
	curl_setopt($ch, CURLOPT_DNS_CACHE_TIMEOUT, 600);
    $content = curl_exec($ch);
    $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE); 
	$error = curl_error($ch);
	return array('content'=>$content, 'httpcode'=>$httpcode, 'error'=>$error);
}

$urls[] = 'https://www.site1.com';
$urls[] = 'https://www.site2.com';
$mail_to = 'some@email.com';

foreach($urls as $url) {
	sleep(10);
	$response = get_url($url);
	if($response['httpcode']!=200) {
		sleep(2);
		$response = get_url($url);
	}
	if($response['httpcode']!=200) {
		$text = $url .' status is '.$response['httpcode'].PHP_EOL;
		if(!empty($response['error'])) {
			$text .= $response['error'];			
		}

		$mail = mail($mail_to, 'Pinger Notify:'.$response['httpcode'], $text);
	}
	if(preg_match('#\[\[{"benchmarks":(.*?)}\]\]#', $response['content'], $match)) {
		$benchmarks = json_decode($match[1], true);
		$timer = (float)$benchmarks['timer'];
		if($timer > 2) {
			$text = $url .' status is '.$response['httpcode'].PHP_EOL;
			$text .= "Timestamp: \t". date("Y-m-d H:i:s").PHP_EOL;
			$text .= "Benchmarks: \t".print_r($benchmarks, true);
			mail($mail_to, 'Pinger Notify: timer '.$timer, $text);
		}
	}
	
	
}
?>