/***************************************************** CURL 非阻塞调用类 Auther: Linvo Copyright(C) 2010/10/21*******************************************************//* // 使用范例 // 传入参数说明 // url 请求地址 // data POST方式数据 //并发调用 $param1 = array( array( 'url' => "http://localhost/a.php?s=1", ), array( 'url' => "http://localhost/a.php?s=1", 'data' => array('aaa' => 1, 'bbb' => 2), ), ); //单个调用 $param2 = array( 'url' => "http://localhost/a.php?s=0", 'data' => array('aaa' => 1, 'bbb' => 2), ); //单个调用（GET简便方式） $param3 = 'http://localhost/a.php?s=2'; $ac = new AsyncCURL(); $ac->set_param($param1); $ret = $ac->send(); //返回值为请求参数顺序的结果数组（元素值为False表示请求错误） var_dump($ret);*/class AsyncCURL{ /** * 是否需要返回HTTP头信息 */ public $curlopt_header = 0; /** * 单个CURL调用超时限制 */ public $curlopt_timeout = 20; private $param = array(); /** * 构造函数（可直接传入请求参数） * * @param array 可选 * @return void */ public function __construct($param = False) { if ($param !== False) { $this->param = $this->init_param($param); } } /** * 设置请求参数 * * @param array * @return void */ public function set_param($param) { $this->param = $this->init_param($param); } /** * 发送请求 * * @return array */ public function send() { if(!is_array($this->param) || !count($this->param)) { return False; } $curl = $ret = array(); $handle = curl_multi_init(); foreach ($this->param as $k => $v) { $param = $this->check_param($v); if (!$param) $curl[$k] = False; else $curl[$k] = $this->add_handle($handle, $param); } $this->exec_handle($handle); foreach ($this->param as $k => $v) { if ($curl[$k]) { $ret[$k] = curl_multi_getcontent($curl[$k]); curl_multi_remove_handle($handle, $curl[$k]); } else { $ret[$k] = False; } } curl_multi_close($handle); return $ret; } //以下为私有方法 private function init_param($param) { $ret = False; if (isset($param['url'])) { $ret = array($param); } else { $ret = isset($param[0]) ? $param : False; } return $ret; } private function check_param($param = array()) { $ret = array(); if (is_string($param)) { $url = $param; } else { extract($param); } if (isset($url)) { $url = trim($url); $url = stripos($url, 'http://') === 0 ? $url : NULL; } if (isset($data) && is_array($data) && !empty($data)) { $method = 'POST'; } else { $method = 'GET'; unset($data); } if (isset($url)) $ret['url'] = $url; if (isset($method)) $ret['method'] = $method; if (isset($data)) $ret['data'] = $data; $ret = isset($url) ? $ret : False; return $ret; } private function add_handle($handle, $param) { $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $param['url']); curl_setopt($curl, CURLOPT_HEADER, $this->curlopt_header); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); curl_setopt($curl, CURLOPT_TIMEOUT, $this->curlopt_timeout); if ($param['method'] == 'POST') { curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $param['data']); } curl_multi_add_handle($handle, $curl); return $curl; } private function exec_handle($handle) { $flag = null; do { curl_multi_exec($handle, $flag); } while ($flag > 0); }} 
