What are the best practices for handling output buffering and headers when using flush() in PHP scripts?

When using output buffering in PHP scripts, it's important to be mindful of headers already sent to the browser. To avoid issues, you should call `ob_start()` at the beginning of your script and use `ob_flush()` or `flush()` to send the buffered output to the browser. Make sure to avoid sending any headers after using `ob_start()` to prevent errors. 

<?php
ob_start();

// Your PHP code here

// Flush the output buffer
ob_flush();

Keywords

output buffering headers flush() PHP scripts handling

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