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Bug #18073 SetCookie generates error-message with empty string as parameter #3
Submitted: 2002-06-30 15:01 UTC Modified: 2002-06-30 15:10 UTC
From: matslin at orakel dot ntnu dot no Assigned:
Status: Not a bug Package: HTTP related
PHP Version: 4.2.1 OS: Linux
Private report: No CVE-ID: None
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 [2002-06-30 15:01 UTC] matslin at orakel dot ntnu dot no 
While the documentation says that the third parameter is optional and can be given with a empty string, the following code does now generate a warning:

<?php
  setcookie('test', '', '');
?>

This changed somewhere between 4.1.2 and 4.2.1.

Since error-output before trying to set the cookie is somewhat problematic (when not using output buffering) this also broke BC in a minor way.

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 [2002-06-30 15:10 UTC] sander@php.net 
No, the docs say you can skip any argument _except_ expire and secure with an empty string, you should use 0 to skip expire and secure.

From http://www.php.net/manual/en/function.setcookie.php:
"You may also replace any argument with an empty string ("") in order to skip that argument. The expire and secure arguments are integers and cannot be skipped with an empty string. Use a zero (0) instead."
 
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