Twig (template engine)

Twig
Basic data
Maintainer	Armin Ronacher , Fabien Potencier
developer	SensioLabs
Publishing year	2009
Current version	3.0.5 ; ( August 5, 2020 )
operating system	Platform independent
programming language	PHP
category	Template engine
License	BSD license
	twig.symfony.com

Twig is a template engine for the PHP programming language . The syntax was influenced by the Jinja template engine and the Django framework . Twig is free software , under the BSD license , and is maintained by Fabien Potencier. The first version was developed by Armin Ronacher . The PHP framework Symfony2 uses Twig as the standard for the template engine.

Functions

Support flow of control
automatic masking
Inheritance of templates
variable filters
Support for internationalization via gettext
Macros
Expandability

Twig is supported by the following Integrated Development Environments:

The templating engine is also supported by the following editors:

syntax

Twig works with three types of identifiers:

{{ ... }}{{ parent() }}to output the content of a variable or the result of an expression (e.g. to include an inherited Twig template ).
{# ... #}, for comments that are not processed further
{% ... %}, for commands and control structures through e.g. B. loops or branches
- {% set foo = 'bar' %}, for the value assignment.
- {% if i is defined and i == 1%} ... {% endif %}: Conditional statement and branch .
- {% for i in 0..10 %} ... {% endfor %}: Grinding

The apostrophe (') is the escape sequence .

So an iterative array can be created in the following way:

{% set meinArray = [1, 2] %}

The same applies to associative data fields :

{% set meinArray = {'key': 'value'} %}

Operators and precedence

The operators and their precedence are listed in the following table in ascending order of priority:

operator	function
tape	Conjunction (logical)
b-xor	Contravalence (logical)
boron	Disjunction (logical)
or	Disjunction
other	conjunction
==	equality
! =	inequality
<	Less than
>	Greater than
> =	Greater or equal
<=	Less than or equal to
in	within
matches	corresponds
starts with	begins with
ends with	ends with
..	Sequence (eg. B .: `1..5`)
+	plus
-	minus
~	Concatenation
*	multiplication
/	division
//	Division (rounded down)
%	Modulo
is	Test (ex: `ist definiert`or `ist nicht leer`)
**	power
\|	filter
[]	Data field
.	Attribute or method of an object (eg. B .: `land.name`)

filter

Filters enable the further processing of an expression before the output and are introduced by a pipe after the expression. Possible filters are, for example:

capitalize: changes the first character of a string to an upper case letter.
upper: changes all characters in a string to uppercase.
first: shows the first line of a data field.
length: returns the size of the variable value.

Special variables

loopcontains information about the current iteration within a loop. So returns loop.indexthe number of iterations already executed.
Global variables begin with underscores. For example:
- _route (URL part behind the domain)
- _self (own file name)
The path to the page will be displayed in the following way: {{ path(app.request.attributes.get('_route'), app.request.attributes.get('_route_params')) }}
The CGI environment variables , e.g. B. {{ app.request.server.get('SERVER_NAME') }}.

example

The following example shows the basic use of Twig.

{% extends "base.html" %}
{% block navigation %}
    <ul id="navigation">
    {% for item in navigation %}
        <li>
            <a href="{{ item.href }}">
                {% if item.level == 2 %}&nbsp;&nbsp;{% endif %}
                {{ item.caption|upper }}
            </a>
        </li>
    {% endfor %}
    </ul>
{% endblock navigation %}

Web links

Official website

Fabien Potencier: Templating Engines in PHP . October 7, 2009. Retrieved April 6, 2011.

Fabien Potencier: Templating Engines in PHP (Перевод: Шаблонизаторы в PHP) ( ru ) November 20, 2009. Accessed April 6, 2011.

Individual evidence

↑ Original repository

↑ Release 3.0.5 . August 5, 2020 (accessed August 16, 2020).

↑ ^a ^b Twig documentation for template designers

↑ Twig repository on GitHub

↑ Symfony2 Documentation ( Memento of the original from August 5, 2010 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2
↑ ^a ^b ^c twig.symfony.com
↑ Extending Twig
↑ twig.symfony.com
↑ twig.symfony.com
↑ twig.symfony.com

[1] Original repository

[_d2d0e84ec37e91ff-2] Release 3.0.5 . August 5, 2020 (accessed August 16, 2020).

[twigfortemplatedesigners-3] Twig documentation for template designers

[4] Twig repository on GitHub