Re: Big file encryption

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Ok tx

And you mean that I can concatenate every chunck in the same file ?

And what about decryption, could I take the same way ?

david

Le Thu, 14 Jul 2005 14:25:48 +0200, Ahmed Saad <myanywhere@xxxxxxxxx> a écrit:

hi david,

On 7/14/05, david forums <dforums@xxxxxxxxxxx> wrote:
So I need to know a way to be able to encrypt large file.

function readfile_chunked ($filename) {

  $chunksize = 1*(1024*1024); // it reads 1 mb per chunck. adjust this
if u need.
  $buffer = '';
  $handle = fopen($filename, 'rb');

  if ($handle === false)
  {
        return false;
  }

  while (!feof($handle))
  {
    $buffer = fread( $handle, $chunksize );
   // do whatever with the chuck you read.
    // you can encrypt it and write all the chunks to the same file
    // (open a file for writing before the loop)
  }

  return fclose( $handle );
}

-ahmed

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