How can error_reporting(E_ALL) be beneficial in troubleshooting PHP code related to SESSION variables?

When troubleshooting PHP code related to SESSION variables, setting error_reporting(E_ALL) can be beneficial because it will display all errors, warnings, and notices that might be affecting the functionality of the SESSION variables. This can help identify issues such as undefined variables, incorrect variable scopes, or syntax errors that are preventing the SESSION variables from being set or accessed properly. 

<?php
error_reporting(E_ALL);

session_start();

$_SESSION['username'] = 'JohnDoe';

echo $_SESSION['username'];
?>

Keywords

error_reporting E_ALL troubleshooting PHP code SESSION variables

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