PROBLEM: After updating PHP 5.6 tot 7.2 we got some client with the issue that the browser was downloading a file (index.php) instead of showing the website. The file that was downloaded is a document that reads the following.
SOLUTION: Simply put the .htaccess file in quarantine (_htaccess) Wordpress wil make ad a new and proper .htaccess file according to PHP 7.2
<?php /** * Front to the WordPress application. This file doesn't do anything, but loads * wp-blog-header.php which does and tells WordPress to load the theme. * * @package WordPress */ /** * Tells WordPress to load the WordPress theme and output it. * * @var bool */ define('WP_USE_THEMES', true); /** Loads the WordPress Environment and Template */ require( dirname( __FILE__ ) . '/portfolio/wp-blog-header.php' )