01.if(isset($_POST['save']))
02.{
03. $filename = $_FILES['myfile']['name'];
04.
05. $destination = 'uploads/' . $filename;
06.
07. $extension = pathinfo($filename,PATHINFO_EXTENSION);
08.
09. $file = $_FILES['myfile']['tmp_name'];
10. $size = $_FILES['myfile']['size'];
11.if(!in_array ($extension,['zip','pdf','png','txt']))
12.{
13. echo"Your file extension must be zip,pdf,png,txt";
14.}
15.elseif($_FILES['myfile']['size'] > 100000000)
16.{
17. echo "file is too large" ;
18.}
