php利用curl实现多线程的类代码
分享一个php多线程类(其实是php利用curl实现的一个多线程类),有了这个类,我们也可利用该类执行多线程任务了!
1,//结果返回给变量
'curlopt_header' => 0,//是否需要返回http头
'curlopt_nobody' => 0,//是否需要返回的内容
'curlopt_followlocation' => 0,//自动跟踪
'curlopt_timeout' => 6//超时时间(s)
);
function __construct($seconds=30){
set_time_limit($seconds);
}
/*
* 设置网址
* @list 数组
*/
public function seturllist($list=array()){
$this->url_list=$list;
}
/*
* 设置参数
* @cutpot array
*/
public function setopt($cutpot){
$this->curl_setopt=$cutpot+$this->curl_setopt;
}
/*
* 执行
* @return array
*/
public function execute(){
$mh=curl_multi_init();
foreach($this->url_list as $i=>$url){
$conn[$i]=curl_init($url);
foreach($this->curl_setopt as $key => $val){
curl_setopt($conn[$i],preg_replace('/(curlopt_w{1,})/ie','$0',$key),$val);
}
curl_multi_add_handle($mh,$conn[$i]);
}
$active=false;
do{
$mrc=curl_multi_exec($mh,$active);
}while($mrc == curlm_call_multi_perform);
while($active and $mrc == curlm_ok){
if(curl_multi_select($mh) != -1){
do{
$mrc=curl_multi_exec($mh,$active);
}while($mrc == curlm_call_multi_perform);
}
}
$res=array();
foreach($this->url_list as $i => $url){
$res[$i]=curl_multi_getcontent($conn[$i]);
curl_close($conn[$i]);
curl_multi_remove_handle($mh,$conn[$i]);//释放资源
}
curl_multi_close($mh);
return $res;
}
}
php使用多线程下载类示例:下载远程图片
$curl_mul=new curl_multi();
$curl_mul->seturllist(array('http://www.baidu.com/img/baidu_sylogo1.gif','http://www.baidu.com/img/baidu_sylogo1.gif','http://www.baidu.com/img/baidu_sylogo1.gif'));
$a=$curl_mul->execute();
$i=1;
foreach($a as $v){
$filename=$i.'.gif';
$fp2=@fopen($filename,'a');
fwrite($fp2,$v);
fclose($fp2);
$i++;
}