public static function downloadToFile($url)
{
$result = HTTPRequest::request($url);
if ($result['Status'] == 'OK') {
$path = Yii::app()->params['DIR_UPLOAD_ROOT'] . 'data/temp/';
if (!file_exists($path)) {
mkdir($path, 0755, true);
}
$filename = $path . md5($url) . '.png';
file_put_contents($filename, $result['content']);
return $filename;
}
return '';
}