check img size and form before upload

check img size and form before upload

i have the following problem, i m trying to check the file size and the
format of some pics, using FOR EACH here's the code
....
$check = 0;
$errors= array();
foreach($_FILES['files']['tmp_name'] as $key => $tmp_name )
{
$file_name = $key.$_FILES['files']['name'][$key];
$file_size =$_FILES['files']['size'][$key];
$file_tmp =$_FILES['files']['tmp_name'][$key];
$file_type=$_FILES['files']['type'][$key];
$allowedExts = array("JPEG", "jpeg", "jpg", "JPG");
$temp = explode(".", $_FILES["files"]["name"][$key]);
$extension = end($temp);
$file_ext=strtolower(end($temp));
if ($file_size > 2097152)
{
$errors = 'Bigger than limit';
$check = 1;
}
else if (in_array($file_ext,$allowedExts) === false)
{
$errors = 'Wrong format';
$check = 2;
}
}
}
if ($check = 1)
{
print '<script type="text/javascript">';
print 'alert("ÊÜðïéï áðü ôá áñ÷åßá óáò îåðåñíÜåé ôï üñéï ôùí 3mb.
Ðáñáêáëþ åëÝãîôå ôá áñ÷åßá óáò!!!")';
print '</script>';
}
else if ($check = 2)
{
print '<script type="text/javascript">';
print 'alert("Ðáñáêáëþ åéóÜãåôå ìüíï áñ÷åßá óå .jpeg êáé .jpg
format!!!")';
print '</script>';
}
else if ($check = 0)
{
foreach($_FILES['files']['tmp_name'] as $key => $tmp_name )
{
$file_name = $key.$_FILES['files']['name'][$key];
$file_size =$_FILES['files']['size'][$key];
$file_tmp =$_FILES['files']['tmp_name'][$key];
$file_type=$_FILES['files']['type'][$key];
$allowedExts = array("JPEG", "jpeg", "jpg", "JPG");
$temp = explode(".", $_FILES["files"]["name"][$key]);
$extension = end($temp);
$file_ext=strtolower(end($temp));
if (($file_size <= 2097152) && (in_array($file_ext,$allowedExts)
=== true))
{
$desired_dir=$Kwdikos_Sunergath.'_'.$Hmeromhnia_Musthriou.'_'.$date_added;
if(empty($errors)==true)
{
if(is_dir($desired_dir)==false){
mkdir("$desired_dir", 0700); // Create directory if
it does not exist
}
if(is_dir("$desired_dir/".$file_name)==false)
{
move_uploaded_file($file_tmp,"$desired_dir/".$file_name);
}
else
{ //rename the file if
another one exist
$new_dir="$desired_dir/".$file_name.time();
rename($file_tmp,$new_dir) ;
}
mysql_query("INSERT INTO mpla mpla mpla)");
}
}
}
so when i m trying to uplod a file less than 2mb it makes the $check = 1
and i dont know why.... if i skip the check code it works...