In general, what are some best practices for handling output buffering and header redirection in PHP scripts?

When using output buffering and header redirection in PHP scripts, it is important to ensure that headers are set before any output is sent to the browser. This can be achieved by using output buffering functions such as ob_start() to capture output before sending it to the browser. Additionally, it is crucial to use header() function for redirection before any content is echoed or printed to avoid "headers already sent" errors. 

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

// Perform any processing or calculations here

if ($condition) {
    header("Location: newpage.php");
    exit();
    // Redirect to new page and stop script execution
}

// Output any content here

ob_end_flush();
// Flush output buffer and send content to the browser
?>

Keywords

output buffering header redirection ob_start ob_end_flush header()

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