How can the use of header(Location) in PHP be optimized to avoid header already sent errors?

When using the header(Location) function in PHP, it is important to ensure that no output has been sent to the browser before calling this function. Otherwise, it will result in a "headers already sent" error. To avoid this error, you can use output buffering to capture any output before sending headers. 

<?php
ob_start(); // Start output buffering

// Your PHP code here

ob_end_clean(); // Clean the output buffer without sending it to the browser

header("Location: https://www.example.com");
exit;
?>

Keywords

header Location optimization header already sent errors PHP

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