PHP method to implement batch detection of whether the website can be opened normally
The curl_setopt function is an important function in PHP, it can imitate the user's Some behaviors, such as imitating user login, registration and other user-operable behaviors.
Instance:
<?php
//设置最大执行时间是 120秒
ini_set('max_execution_time',120);
function httpcode($url){
$ch = curl_init();
$timeout = 3;
curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
curl_setopt($ch,CURLOPT_URL,$url);
curl_exec($ch);
return $httpcode = curl_getinfo($ch,CURLINFO_HTTP_CODE);
curl_close($ch);
}
$check_web = array(
'//www.jb51.net/',
'http://sc.jb51.net/',
'http://tools.jb51.net/',
'http://baike.jb51.net/',
'http://demo.jb51.net/',
'http://demo2.jb51.net/',
);
for($i=0;$i<count($check_web);$i++){
echo $check_web[$i].' -> '.httpcode($check_web[$i]).'<br>';
}
?>Usage:
If displayed If it is 200, it is normal. If other values are displayed, it means it is abnormal; the 3 after $timeout is to set the timeout seconds.
The rendering is as follows:
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