A number of useful filters for Twig.

Jasny's Twig Extensions can be easily installed using composer

composer require jasny/twig-extensions 

$twig = new Twig_Environment($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 }

Format a date based 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
• duration - Get the duration string from seconds

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}} <!-- 35 --> {{ 3600|duration }} <!-- 1h --> 

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

Convert text to HTML + string functions

• paragraph - Add HTML paragraph and line breaks to text
• line - Get a single line of text
• less - Cut of text on a page break
• truncate - Cut off text if it's too long
• linkify - Turn all URLs into clickable links (also supports Twitter @user and #subject)

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 associated array
• html_attr - Turn an array into an HTML attribute string