<?php$ch = array();$res = array();$conn = array();$urls = array(  'baidu' => "http://www.baidu.com/",  'cheyun' => "http://auto.jrj.com.cn/",  'w3c' => "http://www.w3cschool.cc/",);// 創建批處理cURL句柄$mh = curl_multi_init();foreach ($urls as $i => $url) {  // 創建一對cURL資源  $conn[$i] = curl_init();  // 設置URL和相應的選項  curl_setopt($conn[$i], CURLOPT_URL, $url);  curl_setopt($conn[$i], CURLOPT_HEADER, 0);  curl_setopt($conn[$i], CURLOPT_RETURNTRANSFER, 1);  curl_setopt($conn[$i], CURLOPT_TIMEOUT, 10);  //302跳轉  curl_setopt($conn[$i], CURLOPT_FOLLOWLOCATION, 1);  // 增加句柄  curl_multi_add_handle($mh, $conn[$i]);}$active = null;//防卡死寫法：執行批處理句柄do {  $mrc = curl_multi_exec($mh, $active);} while ($mrc == CURLM_CALL_MULTI_PERFORM);while ($active && $mrc == CURLM_OK) {  if (curl_multi_select($mh) != -1) {    do {      $mrc = curl_multi_exec($mh, $active);    } while ($mrc == CURLM_CALL_MULTI_PERFORM);  }}foreach ($urls as $i => $url) {  //獲取當前解析的cURL的相關傳輸信息  $info = curl_multi_info_read($mh);  //獲取請求頭信息  $heards = curl_getinfo($conn[$i]);  var_dump($heards);  //獲取輸出的文本流  $res[$i] = curl_multi_getcontent($conn[$i]);  // 移除curl批處理句柄資源中的某個句柄資源  curl_multi_remove_handle($mh, $conn[$i]);  //關閉cURL會話  curl_close($conn[$i]);}//關閉全部句柄curl_multi_close($mh);//var_dump($res);