What are the implications of using non-standard HTTP headers like "setCacheOptions" in PHP for controlling browser caching?

Using non-standard HTTP headers like "setCacheOptions" in PHP for controlling browser caching can lead to compatibility issues with different browsers and web servers. It is recommended to use standard HTTP headers like "Cache-Control" and "Expires" to control caching behavior. 

<?php
header("Cache-Control: no-cache, must-revalidate");
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
?>

Keywords

HTTP headers setCacheOptions browser caching implications PHP

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