Jasny's Twig Extensions

A number of useful filters for Twig.

Installation

Jasny's Twig Extensions are registred at packagist as jasny/twig-extensions and can be easily installed using composer. Alternatively you can simply download the .zip and copy the file from the 'src' folder.

$twig = new Twig_Environment($loader, $options);
$twig->addExtension(new Jasny\Twig\DateExtension());
$twig->addExtension(new Jasny\Twig\PcreExtension());
$twig->addExtension(new Jasny\Twig\TextExtension());
$twig->addExtension(new Jasny\Twig\ArrayExtension());

To use in a symfony project register the extensions as a service.

services:
  twig.extension.date:
    class: Jasny\Twig\DateExtension
    tags:
      - { name: twig.extension }

  twig.extension.pcre:
    class: Jasny\Twig\PcreExtension
    tags:
      - { name: twig.extension }
  
  twig.extension.text:
    class: Jasny\Twig\TextExtension
    tags:
      - { name: twig.extension }

  twig.extension.array:
    class: Jasny\Twig\ArrayExtension
    tags:
      - { name: twig.extension }

Date extension

Format a date base on the current locale. Requires the intl extension.

• localdate - Format the date value as a string based on the current locale
• localtime - Format the time value as a string based on the current locale
• localdatetime - Format the date/time value as a string based on the current locale
• age - Get the age (in years) based on a date

Locale::setDefault(LC_ALL, "en_US"); // vs "nl_NL"

{{"now"|localdate(long)}}                   <!-- July 12, 2013 --> <!-- 12 juli 2013 -->
{{"now"|localtime(short)}}                  <!-- 5:53 PM --> <!-- 17:53 -->
{{"2013-10-01 23:15:00"|localdatetime()}}   <!-- 10/01/2013 11:15 PM --> <!-- 01-10-2013 23:15 -->
{{"22-08-1981"|age}}                        <!-- 31 -->

PCRE

Exposes PCRE to Twig.

• preg_quote - Quote regular expression characters
• preg_match - Perform a regular expression match
• preg_get - Perform a regular expression match and returns the matched group
• preg_get_all - Perform a regular expression match and return the group for all matches
• preg_grep - Perform a regular expression match and return an array of entries that match the pattern
• preg_replace - Perform a regular expression search and replace
• preg_filter - Perform a regular expression search and replace, returning only matched subjects.
• preg_split - Split text into an array using a regular expression

{% if client.email|preg_match('/^.+@.+\.\w+$/) %}Email: {{ client.email }}{% endif %}
Website: {{ client.website|preg_replace('~^https?://~')
First name: {{ client.fullname|preg_get('/^\S+/') }}
<ul>
  {% for item in items|preg_split('/\s+/')|grep_filter('/-test$/', 'invert') %}
    <li>{{ item }}</li>
  {% endfor %}
</ul>

Text

Convert text to HTML + string functions

• paragraph - Add HTML paragraph and line breaks to text
• more - Cut of text on a pagebreak
• truncate - Cut of text if it's to long
• linkify - Turn all URLs in clickable links (also supports Twitter @user and #subject)
• split - Split text into an array (explode)

Array

Brings PHP's array functions to Twig

• sum - Calculate the sum of values in an array
• product - Calculate the product of values in an array
• values - Return all the values of an array
• as_array - Cast an object to an array
• html_attr - Turn an array into an HTML attribute string