)(aOS 
5fivE
$max_image_width = 1600;
$max_image_height = 1600;
$max_image_size = 4882 * 1024;
$min_image_size = 32 * 1024;
$valid_types = array("gif","jpg", "png", "jpeg");
if(isset($_FILES['file']))
{
if (is_uploaded_file($_FILES['file']['tmp_name'])) {
$filename = $_FILES['file']['tmp_name'];
$ext = substr($_FILES['file']['name'],
1 + strrpos($_FILES['file']['name'], "."));
if (filesize($filename) < $min_image_size) {
echo 'Error: File size < 32K.';
} elseif (filesize($filename) > $max_image_size) {
echo 'Error: File size > 5М.';
} elseif (!in_array($ext, $valid_types)) {
echo 'Error: Invalid file type.';
} else {
$size = GetImageSize($filename);
if (($size) && ($size[0] < $max_image_width)
&& ($size[1] < $max_image_height)) {
move_uploaded_file($filename, "img/ava/".$filename);
} else {
echo 'Error: invalid image properties.';
}
}
} else {
echo "Error: empty file.";
}
}
