php关上其余网站猎取状态码?
php猎取http状态码顺序代码
常常需求判别文件能否能够拜访,能够经过http状态码判断,200为失常拜访,404为找没有到该页面,代码以下
<?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 $path?$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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