PHP Curl 多线程实现

$urls = array(“http://baidu.com“, “http://21andy.com“, “http://google.com“);
$mp = new MultiHttpRequest($urls);
$mp->start();

class_curl_multi.php
<?php
/ Curl 多线程类
使用方法： ========================
$urls = array(“http://baidu.com“, “http://dzone.com“, “http://google.com“);
$mp = new MultiHttpRequest($urls);
$mp->start();
======================== /
class MultiHttpRequest {
public $urls = array();
public $curlopt_header = 1;
public $method = “GET”;

function __construct($urls = false) {
$this->urls = $urls;
}

function set_urls($urls) {
$this->urls = $urls;
return $this;
}

function is_return_header($b) {
$this->curlopt_header = $b;
return $this;
}

function set_method($m) {
$this->medthod = strtoupper($m);
return $this;
}

function start() {
if(!is_array($this->urls) or count($this->urls) == 0){
return false;
}
$curl = $text = array();
$handle = curl_multi_init();
foreach($this->urls as $k=>$v){
$curl[$k] = $this->add_handle($handle, $v);
}

$this->exec_handle($handle);
foreach($this->urls as $k=>$v){
curl_multi_getcontent($curl[$k]);
echo $curl[$k].”\n”;
//$text[$k] = curl_multi_getcontent($curl[$k]);
//echo $text[$k], “\n\n”;
curl_multi_remove_handle($handle, $curl[$k]);
}
curl_multi_close($handle);
}

private function add_handle($handle, $url) {
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_HEADER, $this->curlopt_header);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_multi_add_handle($handle, $curl);
return $curl;
}

private function exec_handle($handle) {
$flag = null;
do {
curl_multi_exec($handle, $flag);
} while ($flag > 0);
}
}