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php file upload

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  1. <?php
  2.    // Configuration - Your Options
  3.       $allowed_filetypes = array('.jpg','.gif','.bmp','.png'); // These will be the types of file that will pass the validation.
  4.       $max_filesize = 524288; // Maximum filesize in BYTES (currently 0.5MB).
  5.       $upload_path = './files/'; // The place the files will be uploaded to (currently a 'files' directory).
  6.  
  7.    $filename = $_FILES['userfile']['name']; // Get the name of the file (including file extension).
  8.    $ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); // Get the extension from the filename.
  9.  
  10.    // Check if the filetype is allowed, if not DIE and inform the user.
  11.    if(!in_array($ext,$allowed_filetypes))
  12.       die('The file you attempted to upload is not allowed.');
  13.  
  14.    // Now check the filesize, if it is too large then DIE and inform the user.
  15.    if(filesize($_FILES['userfile']['tmp_name']) > $max_filesize)
  16.       die('The file you attempted to upload is too large.');
  17.  
  18.    // Check if we can upload to the specified path, if not DIE and inform the user.
  19.    if(!is_writable($upload_path))
  20.       die('You cannot upload to the specified directory, please CHMOD it to 777.');
  21.  
  22.    // Upload the file to your specified path.
  23.    if(move_uploaded_file($_FILES['userfile']['tmp_name'],$upload_path . $filename))
  24.          echo 'Your file upload was successful, view the file <a href="' . $upload_path . $filename . '" title="Your File">here</a>'; // It worked.
  25.       else
  26.          echo 'There was an error during the file upload.  Please try again.'; // It failed :(.
  27.  
  28. ?>

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