/**      * curl 多线程      *       * @param array $array 并行网址      * @param int $timeout 超时时间      * @return mix      */  public function Curl_http($array,$timeout='15'){       $res = array();       $mh = curl_multi_init();//创建多个curl语柄       foreach($array as $k=>$url){           $conn[$k]=curl_init($url);//初始化           curl_setopt($conn[$k], CURLOPT_TIMEOUT, $timeout);//设置超时时间           curl_setopt($conn[$k], CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');           curl_setopt($conn[$k], CURLOPT_MAXREDIRS, 7);//HTTp定向级别 ，7最高           curl_setopt($conn[$k], CURLOPT_HEADER, false);//这里不要header，加块效率           curl_setopt($conn[$k], CURLOPT_FOLLOWLOCATION, 1); // 302 redirect           curl_setopt($conn[$k], CURLOPT_RETURNTRANSFER,1);//要求结果为字符串且输出到屏幕上              curl_setopt($conn[$k], CURLOPT_HTTPGET, true);           curl_multi_add_handle ($mh,$conn[$k]);       }        //防止死循环耗死cpu 这段是根据网上的写法           do {               $mrc = curl_multi_exec($mh,$active);//当无数据，active=true           } while ($mrc == CURLM_CALL_MULTI_PERFORM);//当正在接受数据时           while ($active and $mrc == CURLM_OK) {//当无数据时或请求暂停时，active=true               if (curl_multi_select($mh) != -1) {                   do {                       $mrc = curl_multi_exec($mh, $active);                   } while ($mrc == CURLM_CALL_MULTI_PERFORM);               }           }       foreach ($array as $k => $url) {             if(!curl_errno($conn[$k])){              $data[$k]=curl_multi_getcontent($conn[$k]);//数据转换为array              $header[$k]=curl_getinfo($conn[$k]);//返回http头信息              curl_close($conn[$k]);//关闭语柄              curl_multi_remove_handle($mh  , $conn[$k]);   //释放资源             }else{              unset($k,$url);             }           }           curl_multi_close($mh);           return $data;    } //参数接收 $callback = $_GET['callback']; $hrefs = $_GET['hrefs']; $urlarray = explode(',',trim($hrefs,',')); $date = date('Ymd',time()); //实例化 $img = new HttpImg(); $stime = $img->getMicrotime();//开始时间 $data = $img->Curl_http($urlarray,'20');//列表数据 mkdir('./img/'.$date,0777); foreach ((array)$data as $k=>$v){  preg_match_all("/(href|src)=(["|']?)([^ "'>]+.(jpg|png|PNG|JPG|gif))\2/i", $v, $matches[$k]);  if(count($matches[$k][3])>0){   $dataimg = $img->Curl_http($matches[$k][3],'20');//全部图片数据二进制   $j = 0;   foreach ((array)$dataimg as $kk=>$vv){    if($vv !=''){     $rand = rand(1000,9999);     $basename = time()."_".$rand.".".jpg;//保存为jpg格式的文件     $fname = './img/'.$date."/"."$basename";     file_put_contents($fname, $vv);        $j++;     echo "创建第".$j."张图片"."$fname"."<br/>";    }else{     unset($kk,$vv);    }   }  }else{   unset($matches);  } } $etime = $img->getMicrotime();//结束时间 echo "用时".($etime-$stime)."秒"; exit;