Table of Contents

Filters
- abs
- batch
- capitalize
- column
- convert_encoding
- country_name
- currency_name
- currency_symbol
- data_uri
- date
- date_modify
- default
- escape
- filter
- Filters
- first
- format
- format_currency
- format_date
- format_datetime
- format_number
- format_time
- html_to_markdown
- inky_to_html
- inline_css
- join
- json_encode
- keys
- language_name
- last
- length
- locale_name
- lower
- map
- markdown_to_html
- merge
- nl2br
- number_format
- raw
- reduce
- replace
- reverse
- round
- slice
- sort
- spaceless
- split
- striptags
- timezone_name
- title
- trim
- u
- upper
- url_encode
Functions
- attribute
- block
- constant
- country_timezones
- cycle
- date
- dump
- Functions
- html_classes
- include
- max
- min
- parent
- random
- range
- source
- template_from_string
Miscellaneous
Tags
- apply
- autoescape
- block
- deprecated
- do
- embed
- extends
- filter
- flush
- for
- from
- if
- import
- include
- macro
- sandbox
- set
- spaceless
- Tags
- use
- verbatim
- with
Tests
- constant
- defined
- divisible by
- empty
- even
- iterable
- null
- odd
- same as
- Tests

upper

The upper filter converts a value to uppercase:

{{ 'welcome'|upper }}

{# outputs 'WELCOME' #}

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https://twig.symfony.com/doc/2.x/filters/upper.html