curl多线程采集不是采集不到就是采不全？
如题，代码如下，请问如何解决？
<br>
/** <br>
* curl 多线程 <br>
* <br>
* @param array $array 并行网址 <br>
* @param int $timeout 超时时间<br>
* @return array <br>
*/<br>
function Curl_http($array,$timeout){<br>
$res = array();<br>
$mh = curl_multi_init();//创建多个curl语柄<br>
$startime = getmicrotime();<br>
foreach($array as $k=>$url){<br>
$conn[$k]=curl_init($url);<br>
curl_setopt($conn[$k], CURLOPT_TIMEOUT, $timeout);//设置超时时间<br>
curl_setopt($conn[$k], CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');<br>
curl_setopt($conn[$k], CURLOPT_MAXREDIRS, 7);//HTTp定向级别<br>
curl_setopt($conn[$k], CURLOPT_HEADER, 0);//这里不要header，加块效率<br>
curl_setopt($conn[$k], CURLOPT_FOLLOWLOCATION, 1); // 302 redirect<br>
curl_setopt($conn[$k],CURLOPT_RETURNTRANSFER,1);<br>
curl_multi_add_handle ($mh,$conn[$k]);<br>
}<br>
//防止死循环耗死cpu 这段是根据网上的写法<br>
do {<br>
$mrc = curl_multi_exec($mh,$active);//当无数据，active=true<br>
} while ($mrc == CURLM_CALL_MULTI_PERFORM);//当正在接受数据时<br>
while ($active and $mrc == CURLM_OK) {//当无数据时或请求暂停时，active=true<br>
if (curl_multi_select($mh) != -1) {<br>
do {<br>
$mrc = curl_multi_exec($mh, $active);<br>
} while ($mrc == CURLM_CALL_MULTI_PERFORM);<br>
}<br>
}<br>
foreach ($array as $k => $url) {<br>
curl_error($conn[$k]);<br>
$res[$k]=curl_multi_getcontent($conn[$k]);//获得返回信息<br>
$header[$k]=curl_getinfo($conn[$k]);//返回头信息<br>
curl_close($conn[$k]);//关闭语柄<br>
curl_multi_remove_handle($mh , $conn[$k]); //释放资源 <br>
}<br>
curl_multi_close($mh);<br>
$endtime = getmicrotime();<br>
$diff_time = $endtime - $startime; <div class="clear">
</div>
