我们在上一篇文章介绍了,php多线程类的实现方法,今天这篇文章给大家介绍php如何利用curl实现多线程的方法,有了这个类,我们也可利用该类执行多线程任务了!
php利用curl实现多线程类的示例
<?php class curl_multi{ private $url_list=array(); private $curl_setopt=array( 'CURLOPT_RETURNTRANSFER' => 1,//结果返回给变量 'CURLOPT_HEADER' => 0,//是否需要返回HTTP头 'CURLOPT_NOBODY' => 0,//是否需要返回的内容 'CURLOPT_FOLLOWLOCATION' => 0,//自动跟踪 'CURLOPT_TIMEOUT' => 6//超时时间(s) ); function construct($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')); $a=$curl_mul->execute(); $i=1; foreach($a as $v){ $filename=$i.'.gif'; $fp2=@fopen($filename,'a'); fwrite($fp2,$v); fclose($fp2); $i++; }
总结:
这篇文章给大家介绍了php利用curl实现多线程类的实例,以及php curl多线程下载图片实例,希望可以对工作有所帮助!
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