WPEngine

README.md

Purge Cache on Deployment

src: https://danielbachhuber.com/tip/trigger-varnish-cache-purge-on-deployment-to-wp-engine/

<?php

add_action( 'init', function(){
	// Replace '901bcc678021c0e12f1583085cafda1d' with a secret of your own.
	if ( ! empty( $_GET['purge-cache'] ) && '901bcc678021c0e12f1583085cafda1d' === $_GET['purge-cache'] ) {
		WpeCommon::purge_varnish_cache_all();
		echo 'Cache purged';
		exit;
	}
});