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A template processor (also known as a template engine or template parser) is software designed to combine templates with data (defined by a data model) to produce resulting documents or programs. [ 2 ] [ 3 ] [ 4 ] The language that the templates are written in is known as a template language or templating language.
To get there, type "Template:foo" in the search box (see search), or make a wikilink like [[Template:foo]] somewhere, such as in the sandbox, and click on it. Once you are there, just click "edit" or "edit this page" at the very top of the page (not the documentation edit button lower down) and edit it in the same way that you would any other page.
Smarty is a web template system written in PHP.Smarty is primarily promoted as a tool for separation of concerns. [2] Smarty is intended to simplify compartmentalization, allowing the front-end of a web page to change separately from its back-end.
To create a template, choose an appropriate name, navigate to that page, then click the "Edit" tab or create a new page as needed. Templates are normally placed in the template namespace, though you can place a template intended for your own personal use or for experimentation in your own user space.
Twig is a template engine for the PHP programming language. Its syntax originates from Jinja and Django templates. [3] It's an open source product [4] licensed under a BSD License and maintained by Fabien Potencier. The initial version was created by Armin Ronacher.
The following table lists the various web template engines used in Web template systems and a brief rundown of their features. Engine (implementation) [ a ] Languages [ b ]
Since PHP 4.0.1 create_function(), a thin wrapper around eval(), allowed normal PHP functions to be created during program execution; it was deprecated in PHP 7.2 and removed in PHP 8.0 [226] in favor of syntax for anonymous functions or "closures" [227] that can capture variables from the surrounding scope, which was added in PHP 5.3.
PHP has hundreds of base functions and thousands more from extensions. Prior to PHP version 5.3.0, functions are not first-class functions and can only be referenced by their name, whereas PHP 5.3.0 introduces closures. [35] User-defined functions can be created at any time and without being prototyped. [35]