Are there any best practices for the placement of the "session_start" function in PHP code to avoid header-related issues?

When using the "session_start" function in PHP, it is important to ensure that it is placed at the very beginning of your code, before any other output is sent to the browser. This is because the function sends HTTP headers to the browser to set up the session, and any output before these headers will result in a "headers already sent" error. To avoid this issue, always include the "session_start" function at the top of your PHP files. 

<?php
session_start();

// Rest of your PHP code goes here
?>

Keywords

session_start PHP code header issues placement best practices

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