php打开其他网站获取状态码?
php获取http状态码程序代码
经常需要判断文件是否可以访问,可以通过http状态码判别,200为正常访问,404为找不到该页面,代码如下
<?php// 设置url$url = 'http://www.111cn.net';function get_http_status_code($url) { if(empty($url)) return false; $url = parse_url($url); $host = isset($url['host']) ? $url['host'] : ''; $port = isset($url['port']) ? $url['port'] : '80'; $path = isset($url['path']) ? $url['path'] : ''; $query = isset($url['query']) ? $url['query'] : ''; $request = "HEAD<strong style="color:transparent">来源gaodai#ma#com搞@@代~&码网</strong> $path?$query HTTP/1.1rn" ."Host: $hostrn" ."Connection: closern" ."rn"; $address = gethostbyname($host); $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); socket_connect($socket, $address, $port); socket_write($socket, $request, strlen($request)); $response = split(' ', socket_read($socket, 1024)); socket_close($socket); return trim($response[1]);}echo get_http_status_code($url);
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