http請求處理PHP類

/**


http請求處理類（基于CURL進行封裝）
*
@author Xiwei Ye
@version $Id$
*/
class cls_http_request
{
/**
get方式請求（curl）
*
@param string $url 請求的url
@param integer $timeout 超時時間（s）
@return string(請求成功) | false(請求失敗)
*/
public static function curl_get($url, $timeout = 1)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
$result = curl_exec($ch);
curl_close($ch);
if (is_string($result) && strlen($result))
{
return $result;
}
else
{
return false;
}
}
/**
post方式請求
*
@param string $url 請求的url
@param array $data 請求的參數數組（關聯數組）
@param integer $timeout 超時時間（s）
@return string(請求成功) | false(請求失敗)
*/
public static function curl_post($url, $data, $timeout = 2)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
$result = curl_exec($ch);
curl_close($ch);
if (is_string($result) && strlen($result))
{
return $result;
}
else
{
return false;
}
}
/**
多個url并行請求
*
@param array $urls url數組
@param integer $timeout 超時時間(s)
@return array $res 返回結果
*/
public static function curl_get_urls($urls, $timeout = 1)
{
$mh=curl_multi_init();
$chs=array();
foreach($urls as $url)
{
$ch=curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_HEADER,false);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,1);
curl_setopt($ch,CURLOPT_TIMEOUT,$timeout);
curl_multi_add_handle($mh,$ch);
$chs[]=$ch;
}
$active=null;
do {
$mrc=curl_multi_exec($mh,$active);
}while($mrc == CURLM_CALL_MULTI_PERFORM);
while($active && $mrc == CURLM_OK)
{
if(curl_multi_select($mh) != -1)
{
do{
$mrc=curl_multi_exec($mh,$active);
}while($mrc == CURLM_CALL_MULTI_PERFORM);
}
}
$res=array();
foreach($chs as $ch)
{
$res[]=curl_multi_getcontent($ch);
curl_multi_remove_handle($mh,$ch);
}
curl_multi_close($mh);
return $res;
}
}
</pre>