PHP多线程批量采摘下载美女图片的实现代码

/**      * curl 多线程      * @author http://www.lai18.com     * @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;