In PHP, what are the advantages and disadvantages of using output buffering to prevent header-related errors when implementing redirects?

When implementing redirects in PHP, header-related errors can occur if any output is sent to the browser before the header() function is called. One way to prevent these errors is by using output buffering, which allows you to buffer all output before sending it to the browser. This ensures that headers can be set at any point in the script without causing errors. 

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

// Perform any necessary operations before redirecting

header("Location: new_page.php");
exit();

ob_end_flush(); // Flush the output buffer
?>

Keywords

PHP output buffering header errors redirects advantages disadvantages

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