<?php
 
// Upload and Rename File
 
if (isset($_POST['submit'])) {
    $filename = $_FILES["file"]["name"];
   $file_basename = substr($filename, 0, strripos($filename, '.')); // get file extention
   $file_ext = substr($filename, strripos($filename, '.')); // get file name
   $filesize = $_FILES["file"]["size"];
   $allowed_file_types = array('.jpg','.gif','.png','.bmp','.mp3','.zip','.rar',);
 
   if (in_array($file_ext,$allowed_file_types)  &&  ($filesize < 10485760)) {
 
      // rename file
      $newfilename = md5($file_basename) . $file_ext;
 
      if (file_exists("upload/" . $newfilename)) {      
         // file already exists error
         echo "Ovaj fiajl je vec postoji.";         
      } else {      
         move_uploaded_file($_FILES["file"]["tmp_name"], "upload/" . $newfilename);
         echo "Upload je zavrsen.";
                   
      }
 
   } elseif (empty($file_basename)) {   
      // file selection error
      echo "Izaberite file koji zelite da uploadujete.";      
   } elseif ($filesize > 200000000) {   
      // file size error
      echo "Fajl je prevelik.";      
   } else {   
      // file type error
      echo "Dozvoljeni formati su: " . implode(', ',$allowed_file_types);
      unlink($_FILES["file"]["tmp_name"]);      
   }

 
}
 
?>