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format_number

New in version 2.12: The format_number filter was added in Twig 2.12.

The format_number filter formats a number:

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{{ '12.345'|format_number }}

You can pass attributes to tweak the output:

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{# 12.34 #}
{{ '12.345'|format_number({rounding_mode: 'floor'}) }}

{# 1000000.0000 #}
{{ '1000000'|format_number({fraction_digit: 4}) }}

The list of supported options:

  • grouping_used;
  • decimal_always_shown;
  • max_integer_digit;
  • min_integer_digit;
  • integer_digit;
  • max_fraction_digit;
  • min_fraction_digit;
  • fraction_digit;
  • multiplier;
  • grouping_size;
  • rounding_mode;
  • rounding_increment;
  • format_width;
  • padding_position;
  • secondary_grouping_size;
  • significant_digits_used;
  • min_significant_digits_used;
  • max_significant_digits_used;
  • lenient_parse.

Besides plain numbers, the filter can also format numbers in various styles:

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{# 1,234% #}
{{ '12.345'|format_number(style='percent') }}

{# twelve point three four five #}
{{ '12.345'|format_number(style='spellout') }}

{# 12 sec. #}
{{ '12'|format_duration_number }}

The list of supported styles:

  • decimal;
  • currency;
  • percent;
  • scientific;
  • spellout;
  • ordinal;
  • duration.

As a shortcut, you can use the format_*_number filters by replacing * with a style:

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{# 1,234% #}
{{ '12.345'|format_percent_number }}

{# twelve point three four five #}
{{ '12.345'|format_spellout_number }}

You can pass attributes to tweak the output:

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{# €12.34 #}
{{ '12.345'|format_number('EUR', {rounding_mode: 'floor'}) }}

{# €1,000,000.0000 #}
{{ '1000000'|format_number('EUR', {fraction_digit: 4}) }}

By default, the filter uses the current locale. You can pass it explicitly:

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{# 12,345 #}
{{ '12.345'|format_number(locale='fr') }}

Note

The format_number filter is part of the IntlExtension which is not installed by default. Install it first:

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$ composer req twig/intl-extra

Then, use the twig/extra-bundle on Symfony projects or add the extension explictly on the Twig environment:

use Twig\Extra\Intl\IntlExtension;

$twig = new \Twig\Environment(...);
$twig->addExtension(new IntlExtension());

Arguments

  • locale: The locale
  • attrs: A map of attributes
  • style: The style of the number output
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