微信上传图片

$type = "image";
echo $filepath = dirname(__FILE__)."\images\\1.jpg";
$filedata = array("file1" => "@".$filepath);
$url = "http://file.api.weixin.qq.com/cgi-bin/media/upload?access_token=fyVbjeDDGnS8_wzkb_G-EHCRVJLHLZbr2Jbd7QjkRIEqswI-dwvHVHYXGvmpPvOvROIQ3sH02lIuKmnBtBZ0QZXkC31DF3-vt7Wj8T1cbvA&type=$type";
$result = curl_request($url, $filedata);
var_dump($result);

function curl_request($url,$data=null)
{

$curl = curl_init();
curl_setopt($curl,CURLOPT_HTTPHEADER,array("application/x-www-form-urlencoded;charset=utf-8"));
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
if (!empty($data))
{
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
}
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($curl);
curl_close($curl);
return $output;

}