파일 첨부 채택완료

function it_img2_upload($srcfile, $filename, $dir){     	if($filename == '')        return '';     $size = @getimagesize($srcfile);    if($size[2] < 1 || $size[2] > 3)        return '';     if(!is_dir($dir)) {        @mkdir($dir, G5_DIR_PERMISSION);        @chmod($dir, G5_DIR_PERMISSION);    }     $pattern = "/[#\&\+\-%@=\/\\:;,'\"\^`~\|\!\?\*\$#<>\(\)\[\]\{\}]/";     $filename = preg_replace("/\s+/", "", $filename);    $filename = preg_replace( $pattern, "", $filename);     $filename = preg_replace_callback(                          "/[가-힣]+/",                          create_function('$matches', 'return base64_encode($matches[0]);'),                          $filename);     $filename = preg_replace( $pattern, "", $filename);     upload_file($srcfile, $filename, $dir);     $file = str_replace(G5_DATA_PATH.'/item/', '', $dir.'/'.$filename);     return $file;	}