Deprecated dynamic property in extensions

[basteyy]

Currently, the ExtensionInterface requires only one method (register). In L102 from Func.php , the script tries to assign the Template $template to the extension's variable $template. If strict mode is enabled, you will receive a Deprecated warning:

Deprecated: Creation of dynamic property SomeExtension::$template is deprecated in /var/www/html/vendor/league/plates/src/Template/Func.php on line 104

This can be fixed by adding the following to the extension:

public Template $template;

A better fix would be:

1. Create an extendable MasterExtension class with the variable defined within it.
2. Add a setTemplate method to the ExtensionInterface and allow the user to handle this themselves.

[dsmithhayes]

I have created a PR that will address this issue.

[delboy1978uk]

any movement on this?

[dsmithhayes]

@delboy1978uk No.