Installing or upgrading to WordPress 4.4.2 on Apache results in a blank screen.
After installing WordPress 4.4.2 on an Apache Server, the screen displays a blank screen. If you check the Apache server error logs you will see the following: PHP Parse error: syntax error, unexpected ‘[‘ in /var/www/vhosts/”Your Site”/wp-content/install.php on line 66.
You are running an incompatible version of PHP, the server PHP level should be at PHP 5.6 or higher. This is required in order to run WordPress 4.4.2, to resolve this issue upgrade your server’s PHP to the latest version. This should be done anyway for security reasons.