Why is it recommended to remove the closing PHP tag (?>) at the end of PHP files to prevent session_start() errors?

To prevent session_start() errors, it is recommended to remove the closing PHP tag (?>) at the end of PHP files because any whitespace or characters after the closing tag can cause headers to be sent prematurely, leading to session_start() errors. By removing the closing tag, you ensure that no extra characters are sent to the output before session_start() is called. 

<?php
session_start();

// Your PHP code goes here

Keywords

closing PHP tag session_start() errors best practices PHP files

Related Questions