<?php
    /**
     * to do 使用file_get_contents,以及stream_context_create获取远程接口,并增加重试
     * param string $tongjiUrl
     * return string  
     */
    public function getTongjiUrl($tongjiUrl) {
        $optTongji  = array(
            'http'  => array(
                'method'  => "GET",
                'timeout' => 60,
            )
        );
        $context  = stream_context_create($optTongji);
        $i = 0;
        while($i++ < 5) {
            $tongjiRet = file_get_contents($tongjiUrl,false,$context);
            if (empty($tongjiRet)) {
                CLogger::notice("get url return false for $i time!");
                usleep(2000);
                continue;
            }
            return $tongjiRet;
        }
    }