Detailed explanation of the case of php curl batch processing to achieve controllable concurrent asynchronous operations-PHP Tutorial-php.cn

This time I will bring you a detailed explanation of the case of php curl batch processing to achieve controllable concurrent asynchronous operations. What are the precautions for php curl batch processing to achieve controllable concurrent asynchronous operations? The following is a practical case, one Get up and take a look. Usually cURL in PHP runs in a blocking manner, which means that after creating a cURL request, you must wait until it executes successfully or times out before executing the next request: CURL is generally preferred for API interface access

In the process of actual projects or writing your own gadgets (such as news aggregation, commodity price monitoring, price comparison), you usually need to obtain data from a third-party website or API interface. When you need to process a URL queue, in order to improve performance , you can use the

curl_multi_*

family of functions provided by cURL to achieve simple concurrency. <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:js;toolbar:false;"><?php include &#39;curl.class.php&#39;; function callback($response, $info, $error, $request) { echo &#39;response:<br>&#39;; print_r($response); echo &#39;<br>&#39; . date("Y-m-d H:i:s") . &#39; <br>&#39;; echo &#39;<br>&#39; . str_repeat("-", 100) . &#39;<br>&#39;; } $USER_COOKIE = (!empty($_REQUEST[&#39;cookie&#39;])) ? $_REQUEST[&#39;cookie&#39;] : file_get_contents("cookie.txt"); $curl = new Curl ("callback"); $data = array( array( &#39;url&#39; => &#39;http://dyactive2.vip.xunlei.com/com_sign/?game=qmr&type=rec_gametime&referfrom=&rt=0.42521539455332336&#39;, //秦美人 &#39;method&#39; => &#39;POST&#39;, &#39;post_data&#39; => &#39;&#39;, &#39;header&#39; => null, &#39;options&#39; => array( CURLOPT_REFERER => "http://niu.xunlei.com/entergame/?gameNo=qmr&fenQuNum=3", CURLOPT_COOKIE => $USER_COOKIE, ) ), array( &#39;url&#39; => &#39;http://dyactive2.vip.xunlei.com/com_sign/?game=sq&type=rec_gametime&referfrom=&rt=0.42521539455332336&#39;, //神曲 &#39;method&#39; => &#39;POST&#39;, &#39;post_data&#39; => &#39;&#39;, &#39;header&#39; => null, &#39;options&#39; => array( CURLOPT_REFERER => "http://niu.xunlei.com/entergame/?gameNo=sq&fenQuNum=41", CURLOPT_COOKIE => $USER_COOKIE, ) ), array( &#39;url&#39; => &#39;http://dyactive2.vip.xunlei.com/com_sign/?game=frxz&type=rec_gametime&referfrom=&rt=0.42521539455332336&#39;, //凡人修真 &#39;method&#39; => &#39;POST&#39;, &#39;post_data&#39; => &#39;&#39;, &#39;header&#39; => null, &#39;options&#39; => array( CURLOPT_REFERER => "http://niu.xunlei.com/entergame/?gameNo=frxz&fenQuNum=3", CURLOPT_COOKIE => $USER_COOKIE, ) ), array( &#39;url&#39; => &#39;http://dyactive2.vip.xunlei.com/com_sign/?game=smxj&type=rec_gametime&referfrom=&rt=0.42521539455332336&#39;, //神魔仙界 &#39;method&#39; => &#39;POST&#39;, &#39;post_data&#39; => &#39;&#39;, &#39;header&#39; => null, &#39;options&#39; => array( CURLOPT_REFERER => "http://niu.xunlei.com/entergame/?gameNo=smxj&fenQuNum=2", CURLOPT_COOKIE => $USER_COOKIE, ) ), array( &#39;url&#39; => &#39;http://dyactive2.vip.xunlei.com/com_sign/?game=qsqy&type=rec_gametime&referfrom=&rt=0.42521539455332336&#39;, //倾世情缘 &#39;method&#39; => &#39;POST&#39;, &#39;post_data&#39; => &#39;&#39;, &#39;header&#39; => null, &#39;options&#39; => array( CURLOPT_REFERER => "http://niu.xunlei.com/entergame/?gameNo=qsqy&fenQuNum=11", CURLOPT_COOKIE => $USER_COOKIE, ) ), ); foreach ($data as $val) { $request = new Curl_request ($val [&#39;url&#39;], $val [&#39;method&#39;], $val [&#39;post_data&#39;], $val [&#39;header&#39;], $val [&#39;options&#39;]); $curl->add($request); } $curl->execute(); echo $curl->display_errors();</pre><div class="contentsignin">Copy after login</div></div> The effect is very good, no side effects, the number of concurrency is controllable, there are many applications, use your imagination Bar

<?php
/**
 * cURL批量处理 工具类
 * 
 * @since Version 1.0
 * @author Justmepzy <justmepzy@gmail.com>
 * @link http://t.qq.com/JustPzy
 */
/**
 *单一的请求对象
 */
class Curl_request {
 public $url   = &#39;&#39;;
 public $method   = &#39;GET&#39;;
 public $post_data  = null;
 public $headers  = null;
 public $options  = null;
 /**
  * 
  * @param string $url
  * @param string $method
  * @param string $post_data
  * @param string $headers
  * @param array $options
  * @return void
  */
 public function construct($url, $method = &#39;GET&#39;, $post_data = null, $headers = null, $options = null) {
  $this->url = $url;
  $this->method = strtoupper( $method );
  $this->post_data = $post_data;
  $this->headers = $headers;
  $this->options = $options;
 }
 /**
  * @return void
  */
 public function destruct() {
  unset ( $this->url, $this->method, $this->post_data, $this->headers, $this->options );
 }
}
/**
 * 包含请求列队处理
 */
class Curl {
 /**
  * 请求url个数
  * @var int
  */
 private $size    = 5;
 /**
  * 等待所有cURL批处理中的活动连接等待响应时间
  * @var int
  */
 private $timeout   = 5;
 /**
  * 完成请求回调函数
  * @var string
  */
 private $callback   = null;
 /**
  * cRUL配置
  * @var array
  */
 private $options   = array (CURLOPT_SSL_VERIFYPEER => 0,CURLOPT_RETURNTRANSFER => 1,CURLOPT_CONNECTTIMEOUT => 30 );
 /**
  * 请求头
  * @var array
  */
 private $headers   = array ();
 /**
  * 请求列队
  * @var array
  */
 private $requests   = array ();
 /**
  * 请求列队索引
  * @var array
  */
 private $request_map  = array ();
 /**
  * 错误
  * @var array
  */
 private $errors   = array ();
 /**
  * @access public
  * @param string $callback 回调函数
  * 该函数有4个参数($response,$info,$error,$request)
  * $response url返回的body
  * $info  cURL连接资源句柄的信息
  * $error  错误
  * $request  请求对象
  */
 public function construct($callback = null) {
  $this->callback = $callback;
 }
 /**
  * 添加一个请求对象到列队
  * @access public
  * @param object $request
  * @return boolean
  */
 public function add($request) {
  $this->requests [] = $request;
  return TRUE;
 }
 /**
  * 创建一个请求对象并添加到列队
  * @access public
  * @param string $url
  * @param string $method
  * @param string $post_data
  * @param string $headers
  * @param array $options
  * @return boolean
  */
 public function request($url, $method = &#39;GET&#39;, $post_data = null, $headers = null, $options = null) {
  $this->requests [] = new Curl_request ( $url, $method, $post_data, $headers, $options );
  return TRUE;
 }
 /**
  * 创建GET请求对象
  * @access public
  * @param string $url
  * @param string $headers
  * @param array $options
  * @return boolean
  */
 public function get($url, $headers = null, $options = null) {
  return $this->request ( $url, "GET", null, $headers, $options );
 }
 /**
  * 创建一个POST请求对象
  * @access public
  * @param string $url
  * @param string $post_data
  * @param string $headers
  * @param array $options
  * @return boolean
  */
 public function post($url, $post_data = null, $headers = null, $options = null) {
  return $this->request ( $url, "POST", $post_data, $headers, $options );
 }
 /**
  * 执行cURL
  * @access public
  * @param int $size 最大连接数
  * @return Ambigous <boolean, mixed>|boolean
  */
 public function execute($size = null) {
  if (sizeof ( $this->requests ) == 1) {
   return $this->single_curl ();
  } else {
   return $this->rolling_curl ( $size );
  }
 }
 /**
  * 单个url请求
  * @access private
  * @return mixed|boolean
  */
 private function single_curl() {
  $ch = curl_init ();
  $request = array_shift ( $this->requests );
  $options = $this->get_options ( $request );
  curl_setopt_array ( $ch, $options );
  $output = curl_exec ( $ch );
  $info = curl_getinfo ( $ch );
  // it&#39;s not neccesary to set a callback for one-off requests
  if ($this->callback) {
   $callback = $this->callback;
   if (is_callable ( $this->callback )) {
    call_user_func ( $callback, $output, $info, $request );
   }
  } else
   return $output;
  return true;
 }
 /**
  * 多个url请求
  * @access private
  * @param int $size 最大连接数
  * @return boolean
  */
 private function rolling_curl($size = null) {
  if ($size)
   $this->size = $size;
  else 
   $this->size = count($this->requests);
  if (sizeof ( $this->requests ) < $this->size)
   $this->size = sizeof ( $this->requests );
  if ($this->size < 2)
   $this->set_error ( &#39;size must be greater than 1&#39; );
  $master = curl_multi_init ();
  //添加cURL连接资源句柄到map索引
  for($i = 0; $i < $this->size; $i ++) {
   $ch = curl_init ();
   $options = $this->get_options ( $this->requests [$i] );
   curl_setopt_array ( $ch, $options );
   curl_multi_add_handle ( $master, $ch );
   $key = ( string ) $ch;
   $this->request_map [$key] = $i;
  }
  $active = $done = null;
  do {
   while ( ($execrun = curl_multi_exec ( $master, $active )) == CURLM_CALL_MULTI_PERFORM )
    ;
   if ($execrun != CURLM_OK)
    break;
   //有一个请求完成则回调
   while ( $done = curl_multi_info_read ( $master ) ) {
    //$done 完成的请求句柄
    $info = curl_getinfo ( $done [&#39;handle&#39;] );//
    $output = curl_multi_getcontent ( $done [&#39;handle&#39;] );//
    $error = curl_error ( $done [&#39;handle&#39;] );//
    $this->set_error ( $error );
    //调用回调函数,如果存在的话
    $callback = $this->callback;
    if (is_callable ( $callback )) {
     $key = ( string ) $done [&#39;handle&#39;];
     $request = $this->requests [$this->request_map [$key]];
     unset ( $this->request_map [$key] );
     call_user_func ( $callback, $output, $info, $error, $request );
    }
    curl_close ( $done [&#39;handle&#39;] );
    //从列队中移除已经完成的request
    curl_multi_remove_handle ( $master, $done [&#39;handle&#39;] );
   }
   //等待所有cURL批处理中的活动连接
   if ($active)
    curl_multi_select ( $master, $this->timeout );
  } while ( $active );
  //完成关闭
  curl_multi_close ( $master );
  return true;
 }
 /**
  * 获取没得请求对象的cURL配置
  * @access private
  * @param object $request
  * @return array
  */
 private function get_options($request) {
  $options = $this->get ( &#39;options&#39; );
  if (ini_get ( &#39;safe_mode&#39; ) == &#39;Off&#39; || ! ini_get ( &#39;safe_mode&#39; )) {
   $options [CURLOPT_FOLLOWLOCATION] = 1;
   $options [CURLOPT_MAXREDIRS] = 5;
  }
  $headers = $this->get ( &#39;headers&#39; );
  if ($request->options) {
   $options = $request->options + $options;
  }
  $options [CURLOPT_URL] = $request->url;
  if ($request->post_data && strtolower($request->method) == &#39;post&#39; ) {
   $options [CURLOPT_POST] = 1;
   $options [CURLOPT_POSTFIELDS] = $request->post_data;
  }
  if ($headers) {
   $options [CURLOPT_HEADER] = 0;
   $options [CURLOPT_HTTPHEADER] = $headers;
  }
  return $options;
 }
 /**
  * 设置错误信息
  * @access public
  * @param string $msg
  */
 public function set_error($msg) {
  if (! empty ( $msg ))
   $this->errors [] = $msg;
 }
 /**
  * 获取错误信息
  * @access public
  * @param string $open
  * @param string $close
  * @return string
  */
 public function display_errors($open = &#39;<p>&#39;, $close = &#39;</p>&#39;) {
  $str = &#39;&#39;;
  foreach ( $this->errors as $val ) {
   $str .= $open . $val . $close;
  }
  return $str;
 }
 /**
  * @access public
  * @param string $name
  * @param string $value
  * @return boolean
  */
 public function set($name, $value) {
  if ($name == &#39;options&#39; || $name == &#39;headers&#39;) {
   $this->{$name} = $value + $this->{$name};
  } else {
   $this->{$name} = $value;
  }
  return TRUE;
 }
 /**
  * 
  * @param string $name
  * @return mixed
  * @access public
  */
 public function get($name) {
  return (isset ( $this->{$name} )) ? $this->{$name} : null;
 }
 /**
  * @return void
  * @access public
  */
 public function destruct() {
  unset ( $this->size, $this->timeout, $this->callback, $this->options, $this->headers, $this->requests, $this->request_map, $this->errors );
 }
}
// END Curl Class
/* End of file curl.class.php */

Copy after login

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