PHP - I need some help, please.

[Tommo]

I am working on a project at the moment, which involves some php.

I don't know anything at all about php, but i have managed to get a file upload script to work:

 

<?php
  // Configuration - Your Options
     $allowed_filetypes = array('.wma','.mp3','.wav'); // These will be the types of file that will pass the validation.
     $max_filesize = 1048576; // Maximum filesize in BYTES (currently 0.5MB).
     $upload_path = './files/'; // The place the files will be uploaded to (currently a 'files' directory).

  $filename = $_FILES['userfile']['name']; // Get the name of the file (including file extension).
  $ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); // Get the extension from the filename.

  // Check if the filetype is allowed, if not DIE and inform the user.
  if(!in_array($ext,$allowed_filetypes))
     die('The file you attempted to upload is not allowed. Please only use .mp3, .wav or .wma');

  // Now check the filesize, if it is too large then DIE and inform the user.
  if(filesize($_FILES['userfile']['tmp_name']) > $max_filesize)
     die('The file you attempted to upload is too large.');

  // Check if we can upload to the specified path, if not DIE and inform the user.
  if(!is_writable($upload_path))
     die('You cannot upload to the specified directory, please CHMOD it to 777.');

  // We'll start handling the upload in the next step

   // Upload the file to your specified path.
  if(move_uploaded_file($_FILES['userfile']['tmp_name'],$upload_path . $filename))
        echo 'Your file upload was successful, click <a href="index.html">here</a> to go back home '; // It worked.
     else
        echo 'There was an error during the file upload.  Please try again.'; // It failed .

?>

 

It does everything perfectly as i want it, besides one thing. I would like it to randomize the file names, once they have been uploaded.

I have found this website, which has got something to do with randomizing. But i dont know how to put the two pieces of code together, so that they can work without conflicting eachother.

[Homer]

This should work.

 

<?php
  // Configuration - Your Options
     $allowed_filetypes = array('.wma','.mp3','.wav'); // These will be the types of file that will pass the validation.
     $max_filesize = 1048576; // Maximum filesize in BYTES (currently 0.5MB).
     $upload_path = './files/'; // The place the files will be uploaded to (currently a 'files' directory).

  $filename = $_FILES['userfile']['name']; // Get the name of the file (including file extension).
  $ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); // Get the extension from the filename.

  // Check if the filetype is allowed, if not DIE and inform the user.
  if(!in_array($ext,$allowed_filetypes))
     die('The file you attempted to upload is not allowed. Please only use .mp3, .wav or .wma');

  // Now check the filesize, if it is too large then DIE and inform the user.
  if(filesize($_FILES['userfile']['tmp_name']) > $max_filesize)
     die('The file you attempted to upload is too large.');

  // Check if we can upload to the specified path, if not DIE and inform the user.
  if(!is_writable($upload_path))
     die('You cannot upload to the specified directory, please CHMOD it to 777.');


  // random 4 digit to add to our file name
  // some people use date and time in stead of random digit
  $random_digit=rand(0000,9999);

  //combine random digit to you file name to create new file name
  //use dot (.) to combile these two variables

  $new_file_name=$random_digit.$filename;


  // We'll start handling the upload in the next step

  // Upload the file to your specified path.
  if(move_uploaded_file($_FILES['userfile']['tmp_name'],$upload_path . $new_file_name))
        echo 'Your file upload was successful, click <a href="index.html">here</a> to go back home '; // It worked.
     else
        echo 'There was an error during the file upload.  Please try again.'; // It failed .

?>

[Tommo]

Thank you homer! This is brilliant!