What is the significance of setting arg_separator.output to & in PHP when dealing with session IDs?

Setting arg_separator.output to & in PHP is significant when dealing with session IDs because it ensures that the session ID is properly passed in URLs as a query parameter. By default, PHP uses ; as the separator, which can cause issues with some web servers or applications. Changing it to & ensures compatibility and prevents potential problems with session handling. 

<?php
ini_set('arg_separator.output', '&');
session_start();
// Your PHP code here
?>

Keywords

arg_separator.output & PHP session IDs significance

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