public function thumb()
{
//配置参数
$imgSrc = IFilter::act(IReq::get('img'), 'filename');
$width = IFilter::act(IReq::get('w'), 'int');
$height = IFilter::act(IReq::get('h'), 'int');
if ($imgSrc && $width && $height && isset($_SERVER['HTTP_USER_AGENT'])) {
$imgSrc = IFile::dirExplodeDecode($imgSrc);
if (is_file($imgSrc)) {
$thumbSrc = Thumb::get($imgSrc, $width, $height);
$fileExt = pathinfo($thumbSrc, PATHINFO_EXTENSION);
$mtime = filemtime($thumbSrc);
$gmdate_mod = gmdate('D, d M Y H:i:s', $mtime) . ' GMT';
header('Last-Modified: ' . $gmdate_mod);
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 60 * 60 * 24 * 30) . ' GMT');
header('Content-type: image/' . $fileExt);
header('Content-Length: ' . filesize($thumbSrc));
readfile($thumbSrc);
}
}
return '';
}
