实现Ping功能的PHP类 - HTTP Ping Class
fmms
12年前
这是一个简单的PHP脚本，可用于Ping网站是否可用。 <pre class="brush:php; toolbar: true; auto-links: false;"><?php /************************************************************************* * http_ping.class.php * ************************************************************************* * * * (c) 2008-2011 Wolf Software Limited <support@wolf-software.com> * * All Rights Reserved. * * * * This program is free software: you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation, either version 3 of the License, or * * (at your option) any later version. * * * * This program is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU General Public License for more details. * * * * You should have received a copy of the GNU General Public License * * along with this program. If not, see <http://www.gnu.org/licenses/>. * * * *************************************************************************/ class Http_Ping { private $class_name = "Http Ping"; private $class_version = "1.1.0"; private $class_author = "Wolf Software"; private $class_source = "http://www.wolf-software.com/downloads/php-classes/networking-classes/http-ping-class/"; private $error = null; private $error_codes = Array( Array('code' => 100, 'message' => 'Continue'), Array('code' => 101, 'message' => 'Switching Protocols'), Array('code' => 200, 'message' => 'OK'), Array('code' => 201, 'message' => 'Created'), Array('code' => 202, 'message' => 'Accepted'), Array('code' => 203, 'message' => 'Non-Authoritative Information'), Array('code' => 204, 'message' => 'No Content'), Array('code' => 205, 'message' => 'Reset Content'), Array('code' => 206, 'message' => 'Partial Content'), Array('code' => 300, 'message' => 'Multiple Choices'), Array('code' => 301, 'message' => 'Moved Permanently'), Array('code' => 302, 'message' => 'Found'), Array('code' => 303, 'message' => 'See Other'), Array('code' => 304, 'message' => 'Not Modified'), Array('code' => 305, 'message' => 'Use Proxy'), Array('code' => 306, 'message' => '(Unused)'), Array('code' => 307, 'message' => 'Temporary Redirect'), Array('code' => 400, 'message' => 'Bad Request'), Array('code' => 401, 'message' => 'Unauthorized'), Array('code' => 402, 'message' => 'Payment Required'), Array('code' => 403, 'message' => 'Forbidden'), Array('code' => 404, 'message' => 'Not Found'), Array('code' => 405, 'message' => 'Method Not Allowed'), Array('code' => 406, 'message' => 'Not Acceptable'), Array('code' => 407, 'message' => 'Proxy Authentication Required'), Array('code' => 408, 'message' => 'Request Timeout'), Array('code' => 409, 'message' => 'Conflict'), Array('code' => 410, 'message' => 'Gone'), Array('code' => 411, 'message' => 'Length Required'), Array('code' => 412, 'message' => 'Precondition Failed'), Array('code' => 413, 'message' => 'Request Entity Too Large'), Array('code' => 414, 'message' => 'Request-URI Too Long'), Array('code' => 415, 'message' => 'Unsupported Media Type'), Array('code' => 416, 'message' => 'Requested Range Not Satisfiable'), Array('code' => 417, 'message' => 'Expectation Failed'), Array('code' => 500, 'message' => 'Internal Server Error'), Array('code' => 501, 'message' => 'Not Implemented'), Array('code' => 502, 'message' => 'Bad Gateway'), Array('code' => 503, 'message' => 'Service Unavailable'), Array('code' => 504, 'message' => 'Gateway Timeout'), Array('code' => 505, 'message' => 'HTTP Version Not Supported'), ); public function class_name() { return $this->class_name; } public function class_version() { return $this->class_version; } public function class_author() { return $this->class_author; } public function class_source() { return $this->class_source; } public function __construct() { } public function ping($url, $port = 80, $ssl = false, $user_agent = 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)') { $this->reset_error(); clearstatcache(); if (substr($url, 0, 4) != "http") { if ($ssl) { $url = "https://" . $url; } else { $url = "http://" . $url; } } $ch = curl_init($url); curl_setopt($ch, CURLOPT_PORT, $port); curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_NOBODY, 1); curl_setopt($ch, CURLOPT_USERAGENT, $user_agent); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15); curl_setopt($ch, CURLOPT_FAILONERROR, 1); curl_setopt($ch, CURLOPT_FORBID_REUSE, 1); curl_setopt($ch, CURLOPT_FRESH_CONNECT, 1); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); $execute = curl_exec($ch); $http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE); if (($http_status >= 200) && ($http_status < 400)) { $total_time = curl_getinfo($ch, CURLINFO_TOTAL_TIME); $ret = $total_time; } else { if ($http_status == 0) { $msg = curl_error($ch); $this->set_error($msg); $ret = false; } else { foreach ($this->error_codes as $error) { if ($error['code'] == $http_status) { $this->set_error($error['message']); $ret = false; break; } } } } curl_close($ch); return $ret; } private function reset_error() { $this->error = null; } private function set_error($msg) { $this->error = $msg; } public function get_error() { return $this->error; } } ?></pre>使用方法： <br /> <pre class="brush:php; toolbar: true; auto-links: false;"><?php require_once 'http_ping.class.php'; $h = new Http_Ping(); echo "Class Name: " . $h->class_name() . "<br>"; echo "Class Version: " . $h->class_version() . "<br>"; echo "Class Author: " . $h->class_author() . "<br>"; echo "Class Source: " . $h->class_source() . "<br><br>"; $hosts = Array( Array('name' => 'Wolf Software', 'url' => 'www.wolf-software.com'), Array('name' => 'BBC', 'url' => 'www.bbc.co.uk'), Array('name' => 'Google', 'url' => 'www.google.com'), Array('name' => 'Intentional Failure', 'url' => 'www.thiswontworkatall.com'), ); foreach ($hosts as $host) { echo "Pinging Host: " . $host['name'] . " = "; if (($msg = $h->ping($host['url'])) == false) { echo $h->get_error() . "<BR>"; } else { echo "$msg<BR>"; } } ?></pre> <br />