Upload fotky

function image_shrink_size($file_in, $max_x = 0, $max_y = 0) {
    list($width, $height) = getimagesize($file_in);
    if (!$width || !$height) {
        return array(0, 0);
    }
    if ($max_x && $width > $max_x) {
        $height = round($height * $max_x / $width);
        $width = $max_x;
    }
    if ($max_y && $height > $max_y) {
        $width = round($width * $max_y / $height);
        $height = $max_y;
    }
    return array($width, $height);
}


function image_resize($file_in, $file_out, $width, $height) {
    $imagesize = getimagesize($file_in);
    if ((!$width && !$height) || !$imagesize[0] || !$imagesize[1]) {
        return false;
    }
    if ($imagesize[0] == $width && $imagesize[1] == $height) {
        return copy($file_in, $file_out);
    }
    switch ($imagesize[2]) {
        case 1: $img = imagecreatefromgif($file_in); break;
        case 2: $img = imagecreatefromjpeg($file_in); break;
        case 3: $img = imagecreatefrompng($file_in); break;
        default: return false;
    }
    if (!$img) {
        return false;
    }
    $img2 = imagecreatetruecolor($width, $height);
    imagecopyresampled($img2, $img, 0, 0, 0, 0, $width, $height, $imagesize[0], $imagesize[1]);
    if ($imagesize[2] == 2) {
        return imagejpeg($img2, $file_out);
    } elseif ($imagesize[2] == 1 && function_exists("imagegif")) {
        imagetruecolortopalette($img2, false, 256);
        return imagegif($img2, $file_out);
    } else {
        return imagepng($img2, $file_out);
    }
}


if ($_FILES['foto_inzerat']['type'] == "image/jpeg" OR $_FILES['foto_inzerat']['type'] == "image/pjpeg")
$typ = "jpg";

$obrazek = "foto.".$typ."";
           
list($width, $height) = image_shrink_size($_FILES["foto_inzerat"]["tmp_name"], 150, 200);
if ($width && $height) {
image_resize($_FILES["foto_inzerat"]["tmp_name"], $obrazek, $width, $height);
}
                  
$slozka = "foto/";
$celyobrazek = $slozka;
$celyobrazek .= $obrazek;
                                     
copy($obrazek, $celyobrazek);
unlink($obrazek);