How can the PHP code be optimized to prevent header-related errors?

To prevent header-related errors in PHP, it is important to ensure that no output is sent to the browser before calling functions like header(). This can be achieved by placing the header functions at the beginning of the script, before any HTML or whitespace. Additionally, using the exit() function after sending headers can help prevent any further output that may cause issues. 

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

// Place header functions at the beginning of the script
header("Content-Type: text/html");

// Other PHP code goes here

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

Keywords

PHP optimization header errors prevent

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