使用curl代理获取接口数据

function async_get_url($url_array, $wait_usec = 0)
{
    if (!is_array($url_array))
        return false;
    $wait_usec = intval($wait_usec);
    $data  = array();
    $handle = array();
    $running = 0;
    $mh = curl_multi_init(); // 开启多线程
    $i = 0;
    foreach($url_array as $url) {
        $ch = curl_init();
        if (IS_PROXY) {
            //以下代码设置代理服务器
            //代理服务器地址http://www.cnproxy.com/proxy1.html !!Hong Kong, China的速度比较好
            curl_setopt ($ch, CURLOPT_PROXY,'114.238.39.235:36945' );
        }
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // return don't print
        curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置超时时间
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)');
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); // 302 redirect
        curl_setopt($ch, CURLOPT_MAXREDIRS, 7); //HTTp定向级别
        curl_multi_add_handle($mh, $ch); // 把 curl resource 放进 multi curl handler 里
        $handle[$i++] = $ch;
    }
    /* 执行 */
    do {
        $mrc = curl_multi_exec($mh, $running);
        if ($wait_usec > 0) /* 每个 connect 要间隔多久 */
            usleep($wait_usec); // 250000 = 0.25 sec
    } while ($mrc == CURLM_CALL_MULTI_PERFORM);
    while ($running && $mrc == CURLM_OK) {
        if (curl_multi_select($mh) != -1) {
            do {
                $mrc = curl_multi_exec($mh, $running);
            } while ($mrc == CURLM_CALL_MULTI_PERFORM);
        }
    }
    /* 读取资料 */
    foreach($handle as $i => $ch) {
        $content = curl_multi_getcontent($ch);
        $data[$i] = (curl_errno($ch) == 0) ? $content : false;
    }
    /* 移除 handle*/
    foreach($handle as $ch) {
        curl_multi_remove_handle($mh, $ch);
    }
    curl_multi_close($mh);
    return $data;
}