Important Notice for WordPress Plugins Using PHP 4 Style Constructors
The ability to use PHP 4 style constructors is getting removed from PHP. Without an update, many plugins will eventually no longer work (this is PHP breaking this backwards compatibility, not WordPress)
One of the more common uses of the PHP 4 style constructor (as opposed to PHP 5 style
__construct() ) are plugins with widgets calling
Note: Starting in WordPress 4.3, regardless of the PHP version in use on a server, WordPress will throw a deprecated notice when one of the PHP 4 style constructors is called specifically for widgets.
Basically instead of doing these: