[转]CURL 非阻塞调用类

来源：互联网发布：数据分析的道与术 pdf 编辑：程序博客网时间：2024/05/17 01:04
<?php/***************************************************** * 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);    }}
源码转自互联网
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