php curl批处理实现可控并发异步操作示例
发布:smiling 来源: PHP粉丝网 添加日期:2021-09-17 09:54:44 浏览: 评论:0
这篇文章主要介绍了php curl批处理实现可控并发异步操作,结合实例形式分析了php使用curl的curl_multi_*族函数进行并发操作相关实现技巧,需要的朋友可以参考下
本文实例讲述了php curl批处理实现可控并发异步操作,分享给大家供大家参考,具体如下:
通常情况下 PHP 中的 cURL 是阻塞运行的,就是说创建一个 cURL 请求以后必须等它执行成功或者超时才会执行下一个请求:API接口访问一般会首选CURL
在实际项目或者自己编写小工具(比如新闻聚合,商品价格监控,比价)的过程中, 通常需要从第3方网站或者API接口获取数据, 在需要处理1个URL队列时, 为了提高性能, 可以采用cURL提供的curl_multi_*族函数实现简单的并发.
- <?php
- include 'curl.class.php';
- function callback($response, $info, $error, $request)
- {
- echo 'response:<br>';
- print_r($response);
- echo '<br>' . date("Y-m-d H:i:s") . ' <br>';
- echo '<br>' . str_repeat("-", 100) . '<br>';
- }
- $USER_COOKIE = (!emptyempty($_REQUEST['cookie'])) ? $_REQUEST['cookie'] : file_get_contents("cookie.txt");
- $curl = new Curl ("callback");
- $data = array(
- array(
- 'url' => 'http://dyactive2.vip.xunlei.com/com_sign/?game=qmr&type=rec_gametime&referfrom=&rt=0.42521539455332336', //秦美人
- 'method' => 'POST',
- 'post_data' => '',
- 'header' => null,
- 'options' => array(
- CURLOPT_REFERER => "http://niu.xunlei.com/entergame/?gameNo=qmr&fenQuNum=3",
- CURLOPT_COOKIE => $USER_COOKIE,
- )
- ),
- array(
- 'url' => 'http://dyactive2.vip.xunlei.com/com_sign/?game=sq&type=rec_gametime&referfrom=&rt=0.42521539455332336', //神曲
- 'method' => 'POST',
- 'post_data' => '',
- 'header' => null,
- 'options' => array(
- CURLOPT_REFERER => "http://niu.xunlei.com/entergame/?gameNo=sq&fenQuNum=41",
- CURLOPT_COOKIE => $USER_COOKIE,
- )
- ),
- array(
- 'url' => 'http://dyactive2.vip.xunlei.com/com_sign/?game=frxz&type=rec_gametime&referfrom=&rt=0.42521539455332336', //凡人修真
- 'method' => 'POST',
- 'post_data' => '',
- 'header' => null,
- 'options' => array(
- CURLOPT_REFERER => "http://niu.xunlei.com/entergame/?gameNo=frxz&fenQuNum=3",
- CURLOPT_COOKIE => $USER_COOKIE,
- )
- ),
- array(
- 'url' => 'http://dyactive2.vip.xunlei.com/com_sign/?game=smxj&type=rec_gametime&referfrom=&rt=0.42521539455332336', //神魔仙界
- 'method' => 'POST',
- 'post_data' => '',
- 'header' => null,
- 'options' => array(
- CURLOPT_REFERER => "http://niu.xunlei.com/entergame/?gameNo=smxj&fenQuNum=2",
- CURLOPT_COOKIE => $USER_COOKIE,
- )
- ),
- array(
- 'url' => 'http://dyactive2.vip.xunlei.com/com_sign/?game=qsqy&type=rec_gametime&referfrom=&rt=0.42521539455332336', //倾世情缘
- 'method' => 'POST',
- 'post_data' => '',
- 'header' => null,
- 'options' => 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 ['url'], $val ['method'], $val ['post_data'], $val ['header'], $val ['options']);
- $curl->add($request);
- }
- $curl->execute();
- echo $curl->display_errors();
使用下来效果很好,没有副作用,并发数可控,应用之处多多,自己发挥想象吧
- <?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 = '';
- public $method = 'GET';
- 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 = 'GET', $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 = 'GET', $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 ( $ch );
- // it's not neccesary to set a callback for one-off requests
- if ($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 ( 'size must be greater than 1' );
- $master = curl_multi_init ();
- //添加cURL连接资源句柄到map索引
- for($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 ['handle'] );//
- $output = curl_multi_getcontent ( $done ['handle'] );//
- $error = curl_error ( $done ['handle'] );//
- $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 ['handle'];
- $request = $this->requests [$this->request_map [$key]];
- unset ( $this->request_map [$key] );
- call_user_func ( $callback, $output, $info, $error, $request );
- }
- curl_close ( $done ['handle'] );
- //从列队中移除已经完成的request
- curl_multi_remove_handle ( $master, $done ['handle'] );
- }
- //等待所有cURL批处理中的活动连接
- if ($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 ( 'options' );
- if (ini_get ( 'safe_mode' ) == 'Off' || ! ini_get ( 'safe_mode' )) {
- $options [CURLOPT_FOLLOWLOCATION] = 1;
- $options [CURLOPT_MAXREDIRS] = 5;
- }
- $headers = $this->__get ( 'headers' );
- if ($request->options) {
- $options = $request->options + $options;
- }
- $options [CURLOPT_URL] = $request->url;
- if ($request->post_data && strtolower($request->method) == 'post' ) {
- $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 (! emptyempty ( $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 = '<p>', $close = '</p>') {
- $str = '';
- 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 == 'options' || $name == 'headers') {
- $this->{$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 */
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