Curl batch request operation implemented in PHP

This article mainly introduces the curl batch request operation implemented by PHP, and analyzes the specific batch creation of curl handles, batch execution handles, anti-jamming and other related operation skills of PHP using curl for batch request processing in the form of examples, which are needed Friends can refer to

This article describes the curl batch request operation implemented by PHP. Share it with everyone for your reference, the details are as follows:

<?php
$ch = array();
$res = array();
$conn = array();
$urls = array(
  &#39;baidu&#39; => "http://www.baidu.com/",
  &#39;cheyun&#39; => "http://auto.jrj.com.cn/",
  &#39;w3c&#39; => "http://www.w3cschool.cc/",
);
// 创建批处理cURL句柄
$mh = curl_multi_init();
foreach ($urls as $i => $url) {
  // 创建一对cURL资源
  $conn[$i] = curl_init();
  // 设置URL和相应的选项
  curl_setopt($conn[$i], CURLOPT_URL, $url);
  curl_setopt($conn[$i], CURLOPT_HEADER, 0);
  curl_setopt($conn[$i], CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($conn[$i], CURLOPT_TIMEOUT, 10);
  //302跳转
  curl_setopt($conn[$i], CURLOPT_FOLLOWLOCATION, 1);
  // 增加句柄
  curl_multi_add_handle($mh, $conn[$i]);
}
$active = null;
//防卡死写法：执行批处理句柄
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) {
  //获取当前解析的cURL的相关传输信息
  $info = curl_multi_info_read($mh);
  //获取请求头信息
  $heards = curl_getinfo($conn[$i]);
  var_dump($heards);
  //获取输出的文本流
  $res[$i] = curl_multi_getcontent($conn[$i]);
  // 移除curl批处理句柄资源中的某个句柄资源
  curl_multi_remove_handle($mh, $conn[$i]);
  //关闭cURL会话
  curl_close($conn[$i]);
}
//关闭全部句柄
curl_multi_close($mh);
//var_dump($res);

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