# Class yii\i18n\Formatter

Inheritance | yii\i18n\Formatter » yii\base\Component » yii\base\BaseObject
Implements | yii\base\Configurable
Available since version | 2.0
Source Code | https://github.com/yiisoft/yii2/blob/master/framework/i18n/Formatter.php

Formatter provides a set of commonly used data formatting methods.

The formatting methods provided by Formatter are all named in the form of `asXyz()`. The behavior of some of them may be configured via the properties of Formatter. For example, by configuring $dateFormat, one may control how asDate() formats the value into a date string.

Formatter is configured as an application component in yii\base\Application by default. You can access that instance via `Yii::$app->formatter`.

The Formatter class is designed to format values according to a $locale. For this feature to work the PHP intl extension has to be installed. Most of the methods however work also if the PHP intl extension is not installed by providing a fallback implementation. Without intl month and day names are in English only. Note that even if the intl extension is installed, formatting date and time values for years >=2038 or <=1901 on 32bit systems will fall back to the PHP implementation because intl uses a 32bit UNIX timestamp internally. On a 64bit system the intl formatter is used in all cases if installed.

> Note: The Formatter class is meant to be used for formatting values for display to users in different languages and time zones. If you need to format a date or time in machine readable format, use the PHP date() function instead.

## Public Properties

Hide inherited properties

Property | Type | Description | Defined By
--- | --- | --- | ---
$baseUnits | array | The base units that are used as multipliers for smallest possible unit from $measureUnits. | yii\i18n\Formatter
$behaviors | yii\base\Behavior[] | List of behaviors attached to this component. This property is read-only. | yii\base\Component
$booleanFormat | array | The text to be displayed when formatting a boolean value. | yii\i18n\Formatter
$calendar | IntlCalendar|integer|null | The calendar to be used for date formatting. | yii\i18n\Formatter
$currencyCode | string | The 3-letter ISO 4217 currency code indicating the default currency to use for asCurrency(). | yii\i18n\Formatter
$currencyDecimalSeparator | string | The character displayed as the decimal point when formatting a currency. | yii\i18n\Formatter
$dateFormat | string | The default format string to be used to format a date. | yii\i18n\Formatter
$datetimeFormat | string | The default format string to be used to format a date and time. | yii\i18n\Formatter
$decimalSeparator | string | The character displayed as the decimal point when formatting a number. | yii\i18n\Formatter
$defaultTimeZone | string | The time zone that is assumed for input values if they do not include a time zone explicitly. | yii\i18n\Formatter
$language | string | The language code (e.g. `en-US`, `en`) that is used to translate internal messages. | yii\i18n\Formatter
$locale | string | The locale ID that is used to localize the date and number formatting. | yii\i18n\Formatter
$measureUnits | array | Configuration of weight and length measurement units. | yii\i18n\Formatter
$nullDisplay | string | The text to be displayed when formatting a `null` value. | yii\i18n\Formatter
$numberFormatterOptions | array | A list of name value pairs that are passed to the intl [NumberFormatter::setAttribute()](https://secure. | yii\i18n\Formatter
$numberFormatterSymbols | array | A list of name value pairs that are passed to the intl [NumberFormatter::setSymbol()](https://secure. | yii\i18n\Formatter
$numberFormatterTextOptions | array | A list of name value pairs that are passed to the intl [NumberFormatter::setTextAttribute()](https://secure. | yii\i18n\Formatter
$sizeFormatBase | integer | The base at which a kilobyte is calculated (1000 or 1024 bytes per kilobyte), used by asSize() and asShortSize(). | yii\i18n\Formatter
$systemOfUnits | string | Default system of measure units. | yii\i18n\Formatter
$thousandSeparator | string | The character displayed as the thousands separator (also called grouping separator) character when formatting a number. | yii\i18n\Formatter
$timeFormat | string | The default format string to be used to format a time. | yii\i18n\Formatter
$timeZone | string | The time zone to use for formatting time and date values. | yii\i18n\Formatter

## Public Methods

Hide inherited methods

Method | Description | Defined By
--- | --- | ---
__call() | Calls the named method which is not a class method. | yii\base\Component
__clone() | This method is called after the object is created by cloning an existing one. | yii\base\Component
__construct() | Constructor. | yii\base\BaseObject
__get() | Returns the value of a component property. | yii\base\Component
__isset() | Checks if a property is set, i.e. defined and not null. | yii\base\Component
__set() | Sets the value of a component property. | yii\base\Component
__unset() | Sets a component property to be null. | yii\base\Component
asBoolean() | Formats the value as a boolean. | yii\i18n\Formatter
asCurrency() | Formats the value as a currency number. | yii\i18n\Formatter
asDate() | Formats the value as a date. | yii\i18n\Formatter
asDatetime() | Formats the value as a datetime. | yii\i18n\Formatter
asDecimal() | Formats the value as a decimal number. | yii\i18n\Formatter
asDuration() | Represents the value as duration in human readable format. | yii\i18n\Formatter
asEmail() | Formats the value as a mailto link. | yii\i18n\Formatter
asHtml() | Formats the value as HTML text. | yii\i18n\Formatter
asImage() | Formats the value as an image tag. | yii\i18n\Formatter
asInteger() | Formats the value as an integer number by removing any decimal digits without rounding. | yii\i18n\Formatter
asLength() | Formats the value as a length in human readable form for example `12 meters`. | yii\i18n\Formatter
asNtext() | Formats the value as an HTML-encoded plain text with newlines converted into breaks. | yii\i18n\Formatter
asOrdinal() | Formats the value as a ordinal value of a number. | yii\i18n\Formatter
asParagraphs() | Formats the value as HTML-encoded text paragraphs. | yii\i18n\Formatter
asPercent() | Formats the value as a percent number with "%" sign. | yii\i18n\Formatter
asRaw() | Formats the value as is without any formatting. | yii\i18n\Formatter
asRelativeTime() | Formats the value as the time interval between a date and now in human readable form. | yii\i18n\Formatter
asScientific() | Formats the value as a scientific number. | yii\i18n\Formatter
asShortLength() | Formats the value as a length in human readable form for example `12 m`. | yii\i18n\Formatter
asShortSize() | Formats the value in bytes as a size in human readable form for example `12 kB`. | yii\i18n\Formatter
asShortWeight() | Formats the value as a weight in human readable form for example `12 kg`. | yii\i18n\Formatter
asSize() | Formats the value in bytes as a size in human readable form, for example `12 kilobytes`. | yii\i18n\Formatter
asSpellout() | Formats the value as a number spellout. | yii\i18n\Formatter
asText() | Formats the value as an HTML-encoded plain text. | yii\i18n\Formatter
asTime() | Formats the value as a time. | yii\i18n\Formatter
asTimestamp() | Formats a date, time or datetime in a float number as UNIX timestamp (seconds since 01-01-1970). | yii\i18n\Formatter
asUrl() | Formats the value as a hyperlink. | yii\i18n\Formatter
asWeight() | Formats the value as a weight in human readable form for example `12 kilograms`. | yii\i18n\Formatter
attachBehavior() | Attaches a behavior to this component. | yii\base\Component
attachBehaviors() | Attaches a list of behaviors to the component. | yii\base\Component
behaviors() | Returns a list of behaviors that this component should behave as. | yii\base\Component
canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\Component
canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\Component
className() | Returns the fully qualified name of this class. | yii\base\BaseObject
detachBehavior() | Detaches a behavior from the component. | yii\base\Component
detachBehaviors() | Detaches all behaviors from the component. | yii\base\Component
ensureBehaviors() | Makes sure that the behaviors declared in behaviors() are attached to this component. | yii\base\Component
format() | Formats the value based on the given format type. | yii\i18n\Formatter
getBehavior() | Returns the named behavior object. | yii\base\Component
getBehaviors() | Returns all behaviors attached to this component. | yii\base\Component
hasEventHandlers() | Returns a value indicating whether there is any handler attached to the named event. | yii\base\Component
hasMethod() | Returns a value indicating whether a method is defined. | yii\base\Component
hasProperty() | Returns a value indicating whether a property is defined for this component. | yii\base\Component
init() | Initializes the object. | yii\i18n\Formatter
off() | Detaches an existing event handler from this component. | yii\base\Component
on() | Attaches an event handler to an event. | yii\base\Component
trigger() | Triggers an event. | yii\base\Component

## Protected Methods

Hide inherited methods

Method | Description | Defined By
--- | --- | ---
asCurrencyStringFallback() | Fallback for formatting value as a currency number. | yii\i18n\Formatter
asDecimalStringFallback() | Fallback for formatting value as a decimal number. | yii\i18n\Formatter
asIntegerStringFallback() | Fallback for formatting value as an integer number by removing any decimal digits without rounding. | yii\i18n\Formatter
asPercentStringFallback() | Fallback for formatting value as a percent number with "%" sign. | yii\i18n\Formatter
createNumberFormatter() | Creates a number formatter based on the given type and format. | yii\i18n\Formatter
formatNumber() | Given the value in bytes formats number part of the human readable form. | yii\i18n\Formatter
isNormalizedValueMispresented() | Checks if string representations of given value and its normalized version are different. | yii\i18n\Formatter
normalizeDatetimeValue() | Normalizes the given datetime value as a DateTime object that can be taken by various date/time formatting methods. | yii\i18n\Formatter
normalizeNumericStringValue() | Normalizes a numeric string value. | yii\i18n\Formatter
normalizeNumericValue() | Normalizes a numeric input value. | yii\i18n\Formatter

## Constants

Hide inherited constants

Constant | Value | Description | Defined By
--- | --- | --- | ---
FORMAT_WIDTH_LONG | 'long' |  | yii\i18n\Formatter
FORMAT_WIDTH_SHORT | 'short' |  | yii\i18n\Formatter
UNIT_LENGTH | 'length' |  | yii\i18n\Formatter
UNIT_SYSTEM_IMPERIAL | 'imperial' |  | yii\i18n\Formatter
UNIT_SYSTEM_METRIC | 'metric' |  | yii\i18n\Formatter
UNIT_WEIGHT | 'mass' |  | yii\i18n\Formatter

## Property Details

$baseUnits public property (available since version 2.0.13)

The base units that are used as multipliers for smallest possible unit from $measureUnits.

public array $baseUnits = [self::UNIT_LENGTH => [self::UNIT_SYSTEM_IMPERIAL => 12, self::UNIT_SYSTEM_METRIC => 1000], self::UNIT_WEIGHT => [self::UNIT_SYSTEM_IMPERIAL => 7000, self::UNIT_SYSTEM_METRIC => 1000]]
$booleanFormat public property

The text to be displayed when formatting a boolean value. The first element corresponds to the text displayed for `false`, the second element for `true`. Defaults to `['No', 'Yes']`, where `Yes` and `No` will be translated according to $locale.

public array $booleanFormat = null
$calendar public property (available since version 2.0.7)

The calendar to be used for date formatting. The value of this property will be directly passed to the constructor of the `IntlDateFormatter` class.

Defaults to `null`, which means the Gregorian calendar will be used. You may also explicitly pass the constant `\IntlDateFormatter::GREGORIAN` for Gregorian calendar.

To use an alternative calendar like for example the Jalali calendar, set this property to `\IntlDateFormatter::TRADITIONAL`. The calendar must then be specified in the $locale, for example for the persian calendar the configuration for the formatter would be:

    'formatter' => [
        'locale' => 'fa_IR@calendar=persian',
        'calendar' => \IntlDateFormatter::TRADITIONAL,
    ],

Available calendar names can be found in the ICU manual.

Since PHP 5.5 you may also use an instance of the IntlCalendar class. Check the PHP manual for more details.

If the PHP intl extension is not available, setting this property will have no effect.

See also:

- https://secure.php.net/manual/en/intldateformatter.create.php
- https://secure.php.net/manual/en/class.intldateformatter.php#intl.intldateformatter-constants.calendartypes
- https://secure.php.net/manual/en/class.intlcalendar.php

public IntlCalendar|integer|null $calendar = null
$currencyCode public property

The 3-letter ISO 4217 currency code indicating the default currency to use for asCurrency(). If not set, the currency code corresponding to $locale will be used. Note that in this case the $locale has to be specified with a country code, e.g. `en-US` otherwise it is not possible to determine the default currency.

public string $currencyCode = null
$currencyDecimalSeparator public property (available since version 2.0.35)

The character displayed as the decimal point when formatting a currency. If not set, the currency decimal separator corresponding to $locale will be used. If PHP intl extension is not available, setting this property will have no effect.

public string $currencyDecimalSeparator = null
$dateFormat public property

The default format string to be used to format a date. This can be "short", "medium", "long", or "full", which represents a preset format of different lengths.

It can also be a custom format as specified in the ICU manual. Alternatively this can be a string prefixed with `php:` representing a format that can be recognized by the PHP date()-function.

For example:

    'MM/dd/yyyy' // date in ICU format
    'php:m/d/Y' // the same date in PHP format

public string $dateFormat = 'medium'
$datetimeFormat public property

The default format string to be used to format a date and time. This can be "short", "medium", "long", or "full", which represents a preset format of different lengths.

It can also be a custom format as specified in the ICU manual.

Alternatively this can be a string prefixed with `php:` representing a format that can be recognized by the PHP date()-function.

For example:

    'MM/dd/yyyy HH:mm:ss' // date and time in ICU format
    'php:m/d/Y H:i:s' // the same date and time in PHP format

public string $datetimeFormat = 'medium'
$decimalSeparator public property

The character displayed as the decimal point when formatting a number. If not set, the decimal separator corresponding to $locale will be used. If PHP intl extension is not available, the default value is '.'.

public string $decimalSeparator = null
$defaultTimeZone public property (available since version 2.0.1)

The time zone that is assumed for input values if they do not include a time zone explicitly.

The value must be a valid time zone identifier, e.g. `UTC`, `Europe/Berlin` or `America/Chicago`. Please refer to the php manual for available time zones.

It defaults to `UTC` so you only have to adjust this value if you store datetime values in another time zone in your database.

Note that a UNIX timestamp is always in UTC by its definition. That means that specifying a default time zone different from UTC has no effect on date values given as UNIX timestamp.

public string $defaultTimeZone = 'UTC'
$language public property (available since version 2.0.28)

The language code (e.g. `en-US`, `en`) that is used to translate internal messages. If not set, $locale will be used (without the `@calendar` param, if included).

public string $language = null
$locale public property

The locale ID that is used to localize the date and number formatting. For number and date formatting this is only effective when the PHP intl extension is installed. If not set, yii\base\Application::$language will be used.

public string $locale = null
$measureUnits public property (available since version 2.0.13)

Configuration of weight and length measurement units. This array contains the most usable measurement units, but you can change it in case you have some special requirements.

For example, you can add smaller measure unit:

    $this->measureUnits[self::UNIT_LENGTH][self::UNIT_SYSTEM_METRIC] = [
        'nanometer' => 0.000001
    ]

See also:

- asLength()
- asWeight()

public array $measureUnits = [self::UNIT_LENGTH => [self::UNIT_SYSTEM_IMPERIAL => ['inch' => 1, 'foot' => 12, 'yard' => 36, 'chain' => 792, 'furlong' => 7920, 'mile' => 63360], self::UNIT_SYSTEM_METRIC => ['millimeter' => 1, 'centimeter' => 10, 'meter' => 1000, 'kilometer' => 1000000]], self::UNIT_WEIGHT => [self::UNIT_SYSTEM_IMPERIAL => ['grain' => 1, 'drachm' => 27.34375, 'ounce' => 437.5, 'pound' => 7000, 'stone' => 98000, 'quarter' => 196000, 'hundredweight' => 784000, 'ton' => 15680000], self::UNIT_SYSTEM_METRIC => ['gram' => 1, 'kilogram' => 1000, 'ton' => 1000000]]]
$nullDisplay public property

The text to be displayed when formatting a `null` value. Defaults to `'<span class="not-set">(not set)</span>'`, where `(not set)` will be translated according to $locale.

public string $nullDisplay = null
$numberFormatterOptions public property

A list of name value pairs that are passed to the intl NumberFormatter::setAttribute() method of all the number formatter objects created by createNumberFormatter(). This property takes only effect if the PHP intl extension is installed.

Please refer to the PHP manual for the possible options.

For example to adjust the maximum and minimum value of fraction digits you can configure this property like the following:

    [
        NumberFormatter::MIN_FRACTION_DIGITS => 0,
        NumberFormatter::MAX_FRACTION_DIGITS => 2,
    ]

public array $numberFormatterOptions = []
$numberFormatterSymbols public property (available since version 2.0.4)

A list of name value pairs that are passed to the intl NumberFormatter::setSymbol() method of all the number formatter objects created by createNumberFormatter(). This property takes only effect if the PHP intl extension is installed.

Please refer to the PHP manual for the possible options.

For example to choose a custom currency symbol, e.g. U+20BD instead of `руб.` for Russian Ruble:

    [
        NumberFormatter::CURRENCY_SYMBOL => '₽',
    ]

public array $numberFormatterSymbols = []
$numberFormatterTextOptions public property

A list of name value pairs that are passed to the intl NumberFormatter::setTextAttribute() method of all the number formatter objects created by createNumberFormatter(). This property takes only effect if the PHP intl extension is installed.

Please refer to the PHP manual for the possible options.

For example to change the minus sign for negative numbers you can configure this property like the following:

    [
        NumberFormatter::NEGATIVE_PREFIX => 'MINUS',
    ]

public array $numberFormatterTextOptions = []
$sizeFormatBase public property

The base at which a kilobyte is calculated (1000 or 1024 bytes per kilobyte), used by asSize() and asShortSize(). Defaults to 1024.

public integer $sizeFormatBase = 1024
$systemOfUnits public property (available since version 2.0.13)

Default system of measure units. Defaults to UNIT_SYSTEM_METRIC. Possible values:

- UNIT_SYSTEM_METRIC
- UNIT_SYSTEM_IMPERIAL

See also:

- asLength()
- asWeight()

public string $systemOfUnits = self::UNIT_SYSTEM_METRIC
$thousandSeparator public property

The character displayed as the thousands separator (also called grouping separator) character when formatting a number. If not set, the thousand separator corresponding to $locale will be used. If PHP intl extension is not available, the default value is ','.

public string $thousandSeparator = null
$timeFormat public property

The default format string to be used to format a time. This can be "short", "medium", "long", or "full", which represents a preset format of different lengths.

It can also be a custom format as specified in the ICU manual. Alternatively this can be a string prefixed with `php:` representing a format that can be recognized by the PHP date()-function.

For example:

    'HH:mm:ss' // time in ICU format
    'php:H:i:s' // the same time in PHP format

public string $timeFormat = 'medium'
$timeZone public property

The time zone to use for formatting time and date values.

This can be any value that may be passed to date_default_timezone_set() e.g. `UTC`, `Europe/Berlin` or `America/Chicago`. Refer to the php manual for available time zones. If this property is not set, yii\base\Application::$timeZone will be used.

Note that the default time zone for input data is assumed to be UTC by default if no time zone is included in the input date value. If you store your data in a different time zone in the database, you have to adjust $defaultTimeZone accordingly.

public string $timeZone = null

## Method Details

asBoolean() public method

Formats the value as a boolean.

See also $booleanFormat.

public string asBoolean ( $value )
$value | mixed | The value to be formatted.
return | string | The formatted result.

asCurrency() public method

Formats the value as a currency number.

This function does not require the PHP intl extension to be installed to work, but it is highly recommended to install it to get good formatting results.

Since 2.0.16 numbers that are mispresented after normalization are formatted as strings using fallback function without PHP intl extension support. For very big numbers it's recommended to pass them as strings and not use scientific notation otherwise the output might be wrong.

public string asCurrency ( $value, $currency = null, $options = [], $textOptions = [] )
$value | mixed | The value to be formatted.
$currency | string|null | The 3-letter ISO 4217 currency code indicating the currency to use. If null, $currencyCode will be used.
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.
throws | yii\base\InvalidConfigException | if no currency is given and $currencyCode is not defined.

asCurrencyStringFallback() protected method (available since version 2.0.16)

Fallback for formatting value as a currency number.

protected string asCurrencyStringFallback ( $value, $currency = null )
$value | string|integer|float | The value to be formatted.
$currency | string|null | The 3-letter ISO 4217 currency code indicating the currency to use. If null, $currencyCode will be used.
return | string | The formatted result.
throws | yii\base\InvalidConfigException | if no currency is given and $currencyCode is not defined.

asDate() public method

Formats the value as a date.

See also $dateFormat.

public string asDate ( $value, $format = null )
$value | integer|string|DateTime|DateTimeInterface | The value to be formatted. The following types of value are supported: an integer representing a UNIX timestamp. A UNIX timestamp is always in UTC by its definition. a string that can be parsed to create a DateTime object. The timestamp is assumed to be in $defaultTimeZone unless a time zone is explicitly given. a PHP DateTime object. You may set the time zone for the DateTime object to specify the source time zone. The formatter will convert date values according to $timeZone before formatting it. If no timezone conversion should be performed, you need to set $defaultTimeZone and $timeZone to the same value. Also no conversion will be performed on values that have no time information, e.g. `"2017-06-05"`.
$format | string|null | The format used to convert the value into a date string. If null, $dateFormat will be used. This can be "short", "medium", "long", or "full", which represents a preset format of different lengths. It can also be a custom format as specified in the ICU manual. Alternatively this can be a string prefixed with `php:` representing a format that can be recognized by the PHP date()-function.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value can not be evaluated as a date value.
throws | yii\base\InvalidConfigException | if the date format is invalid.

asDatetime() public method

Formats the value as a datetime.

See also $datetimeFormat.

public string asDatetime ( $value, $format = null )
$value | integer|string|DateTime|DateTimeInterface | The value to be formatted. The following types of value are supported: an integer representing a UNIX timestamp. A UNIX timestamp is always in UTC by its definition. a string that can be parsed to create a DateTime object. The timestamp is assumed to be in $defaultTimeZone unless a time zone is explicitly given. a PHP DateTime object. You may set the time zone for the DateTime object to specify the source time zone. The formatter will convert date values according to $timeZone before formatting it. If no timezone conversion should be performed, you need to set $defaultTimeZone and $timeZone to the same value.
$format | string|null | The format used to convert the value into a date string. If null, $datetimeFormat will be used. This can be "short", "medium", "long", or "full", which represents a preset format of different lengths. It can also be a custom format as specified in the ICU manual. Alternatively this can be a string prefixed with `php:` representing a format that can be recognized by the PHP date()-function.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value can not be evaluated as a date value.
throws | yii\base\InvalidConfigException | if the date format is invalid.

asDecimal() public method

Formats the value as a decimal number.

Property $decimalSeparator will be used to represent the decimal point. The value is rounded automatically to the defined decimal digits.

Since 2.0.16 numbers that are mispresented after normalization are formatted as strings using fallback function without PHP intl extension support. For very big numbers it's recommended to pass them as strings and not use scientific notation otherwise the output might be wrong.

See also:

- $decimalSeparator
- $thousandSeparator

public string asDecimal ( $value, $decimals = null, $options = [], $textOptions = [] )
$value | mixed | The value to be formatted.
$decimals | integer|null | The number of digits after the decimal point. If not given, the number of digits depends in the input value and is determined based on `NumberFormatter::MIN_FRACTION_DIGITS` and `NumberFormatter::MAX_FRACTION_DIGITS`, which can be configured using $numberFormatterOptions. If the PHP intl extension is not available, the default value is `2`. If you want consistent behavior between environments where intl is available and not, you should explicitly specify a value here.
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.

asDecimalStringFallback() protected method (available since version 2.0.16)

Fallback for formatting value as a decimal number.

Property $decimalSeparator will be used to represent the decimal point. The value is rounded automatically to the defined decimal digits.

See also:

- $decimalSeparator
- $thousandSeparator

protected string asDecimalStringFallback ( $value, $decimals = 2 )
$value | string|integer|float | The value to be formatted.
$decimals | integer | The number of digits after the decimal point. The default value is `2`.
return | string | The formatted result.

asDuration() public method (available since version 2.0.7)

Represents the value as duration in human readable format.

public string asDuration ( $value, $implodeString = ', ', $negativeSign = '-' )
$value | DateInterval|string|integer | The value to be formatted. Acceptable formats: DateInterval object integer - number of seconds. For example: value `131` represents `2 minutes, 11 seconds` ISO8601 duration format. For example, all of these values represent `1 day, 2 hours, 30 minutes` duration: `2015-01-01T13:00:00Z/2015-01-02T13:30:00Z` - between two datetime values `2015-01-01T13:00:00Z/P1D2H30M` - time interval after datetime value `P1D2H30M/2015-01-02T13:30:00Z` - time interval before datetime value `P1D2H30M` - simply a date interval `P-1D2H30M` - a negative date interval (`-1 day, 2 hours, 30 minutes`)
$implodeString | string | Will be used to concatenate duration parts. Defaults to `,` .
$negativeSign | string | Will be prefixed to the formatted duration, when it is negative. Defaults to `-`.
return | string | The formatted duration.

asEmail() public method

Formats the value as a mailto link.

public string asEmail ( $value, $options = [] )
$value | string | The value to be formatted.
$options | array | The tag options in terms of name-value pairs. See yii\helpers\Html::mailto().
return | string | The formatted result.

asHtml() public method

Formats the value as HTML text.

The value will be purified using yii\helpers\HtmlPurifier to avoid XSS attacks. Use asRaw() if you do not want any purification of the value.

public string asHtml ( $value, $config = null )
$value | string | The value to be formatted.
$config | array|null | The configuration for the HTMLPurifier class.
return | string | The formatted result.

asImage() public method

Formats the value as an image tag.

public string asImage ( $value, $options = [] )
$value | mixed | The value to be formatted.
$options | array | The tag options in terms of name-value pairs. See yii\helpers\Html::img().
return | string | The formatted result.

asInteger() public method

Formats the value as an integer number by removing any decimal digits without rounding.

Since 2.0.16 numbers that are mispresented after normalization are formatted as strings using fallback function without PHP intl extension support. For very big numbers it's recommended to pass them as strings and not use scientific notation otherwise the output might be wrong.

public string asInteger ( $value, $options = [], $textOptions = [] )
$value | mixed | The value to be formatted.
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.

asIntegerStringFallback() protected method (available since version 2.0.16)

Fallback for formatting value as an integer number by removing any decimal digits without rounding.

protected string asIntegerStringFallback ( $value )
$value | string|integer|float | The value to be formatted.
return | string | The formatted result.

asLength() public method (available since version 2.0.13)

Formats the value as a length in human readable form for example `12 meters`.

Check properties $baseUnits if you need to change unit of value as the multiplier of the smallest unit and $systemOfUnits to switch between UNIT_SYSTEM_METRIC or UNIT_SYSTEM_IMPERIAL.

See also asLength().

public string asLength ( $value, $decimals = null, $numberOptions = [], $textOptions = [] )
$value | float|integer | Value to be formatted.
$decimals | integer|null | The number of digits after the decimal point.
$numberOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.
throws | yii\base\InvalidConfigException | when INTL is not installed or does not contain required information.

asNtext() public method

Formats the value as an HTML-encoded plain text with newlines converted into breaks.

public string asNtext ( $value )
$value | string | The value to be formatted.
return | string | The formatted result.

asOrdinal() public method

Formats the value as a ordinal value of a number.

This function requires the PHP intl extension to be installed.

This formatter does not work well with very big numbers.

public string asOrdinal ( $value )
$value | mixed | The value to be formatted
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.
throws | yii\base\InvalidConfigException | when the PHP intl extension is not available.

asParagraphs() public method

Formats the value as HTML-encoded text paragraphs.

Each text paragraph is enclosed within a `<p>` tag. One or multiple consecutive empty lines divide two paragraphs.

public string asParagraphs ( $value )
$value | string | The value to be formatted.
return | string | The formatted result.

asPercent() public method

Formats the value as a percent number with "%" sign.

Since 2.0.16 numbers that are mispresented after normalization are formatted as strings using fallback function without PHP intl extension support. For very big numbers it's recommended to pass them as strings and not use scientific notation otherwise the output might be wrong.

public string asPercent ( $value, $decimals = null, $options = [], $textOptions = [] )
$value | mixed | The value to be formatted. It must be a factor e.g. `0.75` will result in `75%`.
$decimals | integer|null | The number of digits after the decimal point. If not given, the number of digits depends in the input value and is determined based on `NumberFormatter::MIN_FRACTION_DIGITS` and `NumberFormatter::MAX_FRACTION_DIGITS`, which can be configured using $numberFormatterOptions. If the PHP intl extension is not available, the default value is `0`. If you want consistent behavior between environments where intl is available and not, you should explicitly specify a value here.
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.

asPercentStringFallback() protected method (available since version 2.0.16)

Fallback for formatting value as a percent number with "%" sign.

Property $decimalSeparator will be used to represent the decimal point. The value is rounded automatically to the defined decimal digits.

protected string asPercentStringFallback ( $value, $decimals = null )
$value | string|integer|float | The value to be formatted.
$decimals | integer|null | The number of digits after the decimal point. The default value is `0`.
return | string | The formatted result.

asRaw() public method

Formats the value as is without any formatting.

This method simply returns back the parameter without any format. The only exception is a `null` value which will be formatted using $nullDisplay.

public string asRaw ( $value )
$value | mixed | The value to be formatted.
return | string | The formatted result.

asRelativeTime() public method

Formats the value as the time interval between a date and now in human readable form.

This method can be used in three different ways:

1. Using a timestamp that is relative to `now`.
2. Using a timestamp that is relative to the `$referenceTime`.
3. Using a `DateInterval` object.

public string asRelativeTime ( $value, $referenceTime = null )
$value | integer|string|DateTime|DateTimeInterface|DateInterval | The value to be formatted. The following types of value are supported: an integer representing a UNIX timestamp a string that can be parsed to create a DateTime object. The timestamp is assumed to be in $defaultTimeZone unless a time zone is explicitly given. a PHP DateTime object a PHP DateInterval object (a positive time interval will refer to the past, a negative one to the future)
$referenceTime | integer|string|DateTime|DateTimeInterface|null | If specified the value is used as a reference time instead of `now` when `$value` is not a `DateInterval` object.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value can not be evaluated as a date value.

asScientific() public method

Formats the value as a scientific number.

public string asScientific ( $value, $decimals = null, $options = [], $textOptions = [] )
$value | mixed | The value to be formatted.
$decimals | integer|null | The number of digits after the decimal point. If not given, the number of digits depends in the input value and is determined based on `NumberFormatter::MIN_FRACTION_DIGITS` and `NumberFormatter::MAX_FRACTION_DIGITS`, which can be configured using $numberFormatterOptions. If the PHP intl extension is not available, the default value depends on your PHP configuration. If you want consistent behavior between environments where intl is available and not, you should explicitly specify a value here.
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.

asShortLength() public method (available since version 2.0.13)

Formats the value as a length in human readable form for example `12 m`.

This is the short form of asLength().

Check properties $baseUnits if you need to change unit of value as the multiplier of the smallest unit and $systemOfUnits to switch between UNIT_SYSTEM_METRIC or UNIT_SYSTEM_IMPERIAL.

See also asLength().

public string asShortLength ( $value, $decimals = null, $options = [], $textOptions = [] )
$value | float|integer | Value to be formatted.
$decimals | integer|null | The number of digits after the decimal point.
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.
throws | yii\base\InvalidConfigException | when INTL is not installed or does not contain required information.

asShortSize() public method

Formats the value in bytes as a size in human readable form for example `12 kB`.

This is the short form of asSize().

If $sizeFormatBase is 1024, binary prefixes (e.g. kibibyte/KiB, mebibyte/MiB, ...) are used in the formatting result.

See also:

- $sizeFormatBase
- asSize()

public string asShortSize ( $value, $decimals = null, $options = [], $textOptions = [] )
$value | string|integer|float | Value in bytes to be formatted.
$decimals | integer|null | The number of digits after the decimal point.
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.

asShortWeight() public method (available since version 2.0.13)

Formats the value as a weight in human readable form for example `12 kg`.

This is the short form of asWeight().

Check properties $baseUnits if you need to change unit of value as the multiplier of the smallest unit and $systemOfUnits to switch between UNIT_SYSTEM_METRIC or UNIT_SYSTEM_IMPERIAL.

public string asShortWeight ( $value, $decimals = null, $options = [], $textOptions = [] )
$value | float|integer | Value to be formatted.
$decimals | integer|null | The number of digits after the decimal point.
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.
throws | yii\base\InvalidConfigException | when INTL is not installed or does not contain required information.

asSize() public method

Formats the value in bytes as a size in human readable form, for example `12 kilobytes`.

If $sizeFormatBase is 1024, binary prefixes (e.g. kibibyte/KiB, mebibyte/MiB, ...) are used in the formatting result.

See also:

- $sizeFormatBase
- asShortSize()

public string asSize ( $value, $decimals = null, $options = [], $textOptions = [] )
$value | string|integer|float | Value in bytes to be formatted.
$decimals | integer|null | The number of digits after the decimal point.
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.

asSpellout() public method

Formats the value as a number spellout.

This function requires the PHP intl extension to be installed.

This formatter does not work well with very big numbers.

public string asSpellout ( $value )
$value | mixed | The value to be formatted
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.
throws | yii\base\InvalidConfigException | when the PHP intl extension is not available.

asText() public method

Formats the value as an HTML-encoded plain text.

public string asText ( $value )
$value | string | The value to be formatted.
return | string | The formatted result.

asTime() public method

Formats the value as a time.

See also $timeFormat.

public string asTime ( $value, $format = null )
$value | integer|string|DateTime|DateTimeInterface | The value to be formatted. The following types of value are supported: an integer representing a UNIX timestamp. A UNIX timestamp is always in UTC by its definition. a string that can be parsed to create a DateTime object. The timestamp is assumed to be in $defaultTimeZone unless a time zone is explicitly given. a PHP DateTime object. You may set the time zone for the DateTime object to specify the source time zone. The formatter will convert date values according to $timeZone before formatting it. If no timezone conversion should be performed, you need to set $defaultTimeZone and $timeZone to the same value.
$format | string|null | The format used to convert the value into a date string. If null, $timeFormat will be used. This can be "short", "medium", "long", or "full", which represents a preset format of different lengths. It can also be a custom format as specified in the ICU manual. Alternatively this can be a string prefixed with `php:` representing a format that can be recognized by the PHP date()-function.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value can not be evaluated as a date value.
throws | yii\base\InvalidConfigException | if the date format is invalid.

asTimestamp() public method

Formats a date, time or datetime in a float number as UNIX timestamp (seconds since 01-01-1970).

public string asTimestamp ( $value )
$value | integer|string|DateTime|DateTimeInterface | The value to be formatted. The following types of value are supported: an integer representing a UNIX timestamp a string that can be parsed to create a DateTime object. The timestamp is assumed to be in $defaultTimeZone unless a time zone is explicitly given. a PHP DateTime object
return | string | The formatted result.

asUrl() public method

Formats the value as a hyperlink.

public string asUrl ( $value, $options = [] )
$value | mixed | The value to be formatted.
$options | array | The tag options in terms of name-value pairs. See yii\helpers\Html::a().
return | string | The formatted result.

asWeight() public method (available since version 2.0.13)

Formats the value as a weight in human readable form for example `12 kilograms`.

Check properties $baseUnits if you need to change unit of value as the multiplier of the smallest unit and $systemOfUnits to switch between UNIT_SYSTEM_METRIC or UNIT_SYSTEM_IMPERIAL.

public string asWeight ( $value, $decimals = null, $options = [], $textOptions = [] )
$value | float|integer | Value to be formatted.
$decimals | integer|null | The number of digits after the decimal point.
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | string | The formatted result.
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.
throws | yii\base\InvalidConfigException | when INTL is not installed or does not contain required information.

createNumberFormatter() protected method

Creates a number formatter based on the given type and format.

You may override this method to create a number formatter based on patterns.

protected NumberFormatter createNumberFormatter ( $style, $decimals = null, $options = [], $textOptions = [] )
$style | integer | The type of the number formatter. Values: NumberFormatter::DECIMAL, ::CURRENCY, ::PERCENT, ::SCIENTIFIC, ::SPELLOUT, ::ORDINAL ::DURATION, ::PATTERN_RULEBASED, ::DEFAULT_STYLE, ::IGNORE
$decimals | integer|null | The number of digits after the decimal point.
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | NumberFormatter | The created formatter instance

format() public method

Formats the value based on the given format type.

This method will call one of the "as" methods available in this class to do the formatting. For type "xyz", the method "asXyz" will be used. For example, if the format is "html", then asHtml() will be used. Format names are case insensitive.

public string format ( $value, $format )
$value | mixed | The value to be formatted.
$format | string|array|Closure | The format of the value, e.g., "html", "text" or an anonymous function returning the formatted value. To specify additional parameters of the formatting method, you may use an array. The first element of the array specifies the format name, while the rest of the elements will be used as the parameters to the formatting method. For example, a format of `['date', 'Y-m-d']` will cause the invocation of `asDate($value, 'Y-m-d')`. The anonymous function signature should be: `function($value, $formatter)`, where `$value` is the value that should be formatted and `$formatter` is an instance of the Formatter class, which can be used to call other formatting functions. The possibility to use an anonymous function is available since version 2.0.13.
return | string | The formatting result.
throws | yii\base\InvalidArgumentException | if the format type is not supported by this class.

formatNumber() protected method (available since version 2.0.32)

Given the value in bytes formats number part of the human readable form.

protected array formatNumber ( $value, $decimals, $maxPosition, $formatBase, $options, $textOptions )
$value | string|integer|float | Value in bytes to be formatted.
$decimals | integer | The number of digits after the decimal point
$maxPosition | integer | Maximum internal position of size unit, ignored if $formatBase is an array
$formatBase | array|integer | The base at which each next unit is calculated, either 1000 or 1024, or an array
$options | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterOptions.
$textOptions | array | Optional configuration for the number formatter. This parameter will be merged with $numberFormatterTextOptions.
return | array | [parameters for Yii::t containing formatted number, internal position of size unit]
throws | yii\base\InvalidArgumentException | if the input value is not numeric or the formatting failed.

init() public method

Initializes the object.

This method is invoked at the end of the constructor after the object is initialized with the given configuration.

public void init ( )

isNormalizedValueMispresented() protected method (available since version 2.0.16)

Checks if string representations of given value and its normalized version are different.

protected boolean isNormalizedValueMispresented ( $value, $normalizedValue )
$value | string|float|integer |
$normalizedValue | float|integer |

normalizeDatetimeValue() protected method

Normalizes the given datetime value as a DateTime object that can be taken by various date/time formatting methods.

protected DateTime|array normalizeDatetimeValue ( $value, $checkDateTimeInfo = false )
$value | integer|string|DateTime|DateTimeInterface | The datetime value to be normalized. The following types of value are supported: an integer representing a UNIX timestamp a string that can be parsed to create a DateTime object. The timestamp is assumed to be in $defaultTimeZone unless a time zone is explicitly given. a PHP DateTime object
$checkDateTimeInfo | boolean | Whether to also check if the date/time value has some time and date information attached. Defaults to `false`. If `true`, the method will then return an array with the first element being the normalized timestamp, the second a boolean indicating whether the timestamp has time information and third a boolean indicating whether the timestamp has date information. This parameter is available since version 2.0.1.
return | DateTime|array | The normalized datetime value. Since version 2.0.1 this may also return an array if `$checkDateTimeInfo` is true. The first element of the array is the normalized timestamp and the second is a boolean indicating whether the timestamp has time information or it is just a date value. Since version 2.0.12 the array has third boolean element indicating whether the timestamp has date information or it is just a time value.
throws | yii\base\InvalidArgumentException | if the input value can not be evaluated as a date value.

normalizeNumericStringValue() protected method (available since version 2.0.16)

Normalizes a numeric string value.

protected string normalizeNumericStringValue ( $value )
$value | string |
return | string | The normalized number value as a string

normalizeNumericValue() protected method

Normalizes a numeric input value.

- everything empty will result in `0`
- a numeric string will be casted to float
- everything else will be returned if it is numeric, otherwise an exception is thrown.

protected float|integer normalizeNumericValue ( $value )
$value | mixed | The input value
return | float|integer | The normalized number value
throws | yii\base\InvalidArgumentException | if the input value is not numeric.