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检查网站是否宕机PHP代码


<?php
function Networkcheck($url){
$agent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0";
//curl_init-初始化一个curl会话
$ch=curl_init();
//curl_setopt — 为一个curl设置会话参数
curl_setopt ($ch, CURLOPT_URL,$url );
curl_setopt($ch, CURLOPT_USERAGENT, $agent);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch,CURLOPT_VERBOSE,false);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch,CURLOPT_SSLVERSION,3);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST, FALSE);
//curl_exec —执行一个curl会话
$page=curl_exec($ch);
//curl_getinfo — 获取一个curl连接资源句柄的信息
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
//curl_close()函数的作用是关闭一个curl会话,唯一的参数是curl_init()函数返回的句柄。
curl_close($ch);
if($httpcode>=200 && $httpcode<300)
return true;
else
return false;
}
//函数参数为要检查的网站的网址路径
if(Networkcheck("http://www.baidu.com"))
echo "Website OK";
else
echo "Website DOWN";
?>


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