PHP支持socket编程,fscokopen函数返回一个到远程主机连接的句柄,可以像使用fopen返回的句柄一样,对它进行 fwrite、fgets、fread等操作。使用fsockopen连接到本地服务器,触发脚本执行,然后立即返回,不等待脚本执行完成,即可实现异步 执行PHP的效果。
- <?
- function triggerRequest($url, $post_data = array(), $cookie = array()){
- $method = "GET"; //通过POST或者GET传递一些参数给要触发的脚本
- $url_array = parse_url($url); //获取URL信息
- $port = isset($url_array['port'])? $url_array['port'] : 80;
- $fp = fsockopen($url_array['host'], $port, $errno, $errstr, 30);
- if (!$fp) {
- return FALSE;
- }
- $getPath = $url_array['path'] ."?". $url_array['query'];
- if(!empty($post_data)){
- $method = "POST";
- }
- $header = $method . " " . $getPath;
- $header .= " HTTP/1.1\r\n";
- $header .= "Host: ". $url_array['host'] . "\r\n "; //HTTP 1.1 Host域不能省略
- /*以下头信息域可以省略
- $header .= "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13 \r\n";
- $header .= "Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,q=0.5 \r\n";
- $header .= "Accept-Language: en-us,en;q=0.5 ";
- $header .= "Accept-Encoding: gzip,deflate\r\n";
- */
- $header .= "Connection:Close\r\n";
- if(!empty($cookie)){
- $_cookie = strval(NULL);
- foreach($cookie as $k => $v){
- $_cookie .= $k."=".$v."; ";
- }
- $cookie_str = "Cookie: " . base64_encode($_cookie) ." \r\n"; //传递Cookie
- $header .= $cookie_str;
- }
- if(!empty($post_data)){
- $_post = strval(NULL);
- foreach($post_data as $k => $v){
- $_post .= $k."=".$v."&";
- }
- $post_str = "Content-Type: application/x-www-form-urlencoded\r\n";
- $post_str .= "Content-Length: ". strlen($_post) ." \r\n"; //POST数据的长度
- $post_str .= $_post."\r\n\r\n "; //传递POST数据
- $header .= $post_str;
- }
- fwrite($fp, $header);
- //echo fread($fp, 1024); //服务器返回
- fclose($fp);
- return true;
- }