Re: Using PHP to remove certain number of bytes from file

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On Sun, December 30, 2007 11:20 am, Scott Wilcox wrote:
> Is it possible with PHP to remove a certain number of bytes from a
> file,
> purely within PHP?
>
> If so, does someone have an example of doing this, removing the first
> 230 bytes from a file.

Something like this might work:

<?php
  $path = "/full/path/to/file";
  $file = fopen($path, 'r+') or die("Could not open $path");
  //read 200 bytes
  $goners = fread($file, 200);
  if (!strlen($goners) === 200){
    ftruncate($file, 0);
  }
  $offset = 0;
  while(!feof($file)){
    $buffer = fread($file, 2048);
    ftell($file, $offset);
    fwrite($file, $buffer);
    $offset += strlen($buffer);
    ftell($file, $offset + 200);
  }
?>

-- 
Some people have a "gift" link here.
Know what I want?
I want you to buy a CD from some indie artist.
http://cdbaby.com/from/lynch
Yeah, I get a buck. So?

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