- $url = "www.ite5e.com";
- if(array_key_exists(url,$_GET)){
- $url = $_GET[url];
- }
- $hosts = array("www.xunlei.com", "www.qq.com", "www.163.com","www.baidu.com","www.kaixin.com","vip.xunlei.com");
- #$hosts = array($url);
- $timeout = 5;
- $status = array();
- $retdata = array();
- $sockets = array();
- $e = array();
- /* Initiate connections to all the hosts simultaneously */
- foreach ($hosts as $id => $host) {
- $errno = 0;
- $errstr = "";
- $s = stream_socket_client("$host:80", $errno, $errstr, $timeout,STREAM_CLIENT_ASYNC_CONNECT|STREAM_CLIENT_CONNECT);
- if ($s) {
- $sockets[$id] = $s;
- $status[$id] = "in progress";
- } else {
- $status[$id] = "failed, $errno $errstr";
- }
- $retdata[$id] = ;
- }
- /* Now, wait for the results to come back in */
- while (count($sockets)) {
- $read = $write = $sockets;
- /* This is the magic function - explained below */
- $n = stream_select($read, $write, $e, $timeout);
- if ($n > 0) {
- /* readable sockets either have data for us, or are failed connection attempts */
- foreach ($read as $r) {
- $id = array_search($r, $sockets);
- $data = fread($r, 8192);
- if (strlen($data) == 0) {
- if ($status[$id] == "in progress") {
- $status[$id] = "failed to connect";
- }
- fclose($r);
- unset($sockets[$id]);
- } else {
- $retdata[$id] .= $data;
- }
- }
- /* writeable sockets can accept an HTTP request */
- foreach ($write as $w) {
- if(!is_resource($w))continue;
- $id = array_search($w, $sockets);
- fwrite($w, "GET / HTTP/1.0 Host: ".$hosts[$id]." ");
- $status[$id] = "waiting for response";
- }
- } else {
- /* timed out waiting; assume that all hosts associated
- * with $sockets are faulty */
- foreach ($sockets as $id => $s) {
- $status[$id] = "timed out " . $status[$id];
- }
- break;
- }
- }
- foreach ($hosts as $id => $host) {
- #echo "Host: $host ";
- #echo "Status: " . $status[$id] . " ";
- #echo "Retdata: " . $retdata[$id] . " ";
- $strs = explode(" ",$retdata[$id],2);
- echo isset($strs[1])?$strs[1]:$retdata[$id];
- }
- function debug($i){
- var_dump($i);
- var_dump(gettype($i));
- var_dump(is_resource($i));
- }
- ?>
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