What is the best practice for handling session_start() in PHP to avoid "Cannot send session cookie" errors?

When using session_start() in PHP, it is important to ensure that it is called before any output is sent to the browser. This is because session_start() sends headers to set a session cookie, and any output before that will cause the "Cannot send session cookie" error. To avoid this issue, make sure to call session_start() at the very beginning of your PHP script, before any HTML or whitespace. 

<?php
// Start the session before any output
session_start();

// Rest of your PHP code goes here
?>

Keywords

session_start PHP error cookie handling

Related Questions