изменение размера картинки

<?
    $src = $_SERVER["DOCUMENT_ROOT"].$_REQUEST['src'];    
    $width = $_REQUEST['width'];    
    $img = @imagecreatefromjpeg($src);  
    $photoInfo = @getimagesize($src);        
    if ($width*1 > $photoInfo[0]*1) { 
        header('Content-Type: image/jpeg');
        imagejpeg($img);     
    }
    else {
        $height = ($width * $photoInfo[1]) / $photoInfo[0];
        $imgResize = imageCreateTrueColor($width, $height);
        imageCopyResampled($imgResize, $img, 0, 0, 0, 0,
        $width, $height, $photoInfo[0], $photoInfo[1]);
        header('Content-Type: image/jpeg');
        imagejpeg($imgResize);     
    }
    
?>

<?$GLOBALS["APPLICATION"]->IncludeComponent(
                              "bitrix:forum.interface", "show_file",
                              Array(
                                 "FILE" => $arFile,
                                 "WIDTH" => $arResult["PARSER"]->image_params["width"],
                                 "HEIGHT" => $arResult["PARSER"]->image_params["height"],
                                 "CONVERT" => "N",
                                 "FAMILY" => "FORUM",
                                 "SINGLE" => "Y",
                                 "RETURN" => "N",
                                 "SHOW_LINK" => "Y"),
                              null,
                              array("HIDE_ICONS" => "Y"));
                        ?>