I18n Filters¶
Zend Framework comes with a set of filters related to Internationalization.
Alnum Filter¶
The Alnum
filter can be used to return only alphabetic characters and digits in the unicode “letter” and
“number” categories, respectively. All other characters are supressed.
Supported options for Alnum Filter
The following options are supported for Alnum
:
Alnum([ boolean $allowWhiteSpace [, string $locale ]])
$allowWhiteSpace
: If set to true then whitespace characters are allowed. Otherwise they are suppressed. Default is “false” (whitespace is not allowed).Methods for getting/setting the allowWhiteSpace option are also available:
getAllowWhiteSpace()
andsetAllowWhiteSpace()
$locale
: The locale string used in identifying the characters to filter (locale name, e.g. en_US). If unset, it will use the default locale (Locale::getDefault()
).Methods for getting/setting the locale are also available:
getLocale()
andsetLocale()
Alnum Filter Usage
1 2 3 4 5 6 7 8 9 | // Default settings, deny whitespace
$filter = \Zend\I18n\Filter\Alnum();
echo $filter->filter("This is (my) content: 123");
// Returns "Thisismycontent123"
// First param in constructor is $allowWhiteSpace
$filter = \Zend\I18n\Filter\Alnum(true);
echo $filter->filter("This is (my) content: 123");
// Returns "This is my content 123"
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Note
Note: Alnum
works on almost all languages, except: Chinese, Japanese and Korean. Within these languages the
english alphabet is used instead of the characters from these languages. The language itself is detected using
the Locale
.
Alpha Filter¶
The Alpha
filter can be used to return only alphabetic characters in the unicode “letter” category. All other
characters are supressed.
Supported options for Alpha Filter
The following options are supported for Alpha
:
Alpha([ boolean $allowWhiteSpace [, string $locale ]])
$allowWhiteSpace
: If set to true then whitespace characters are allowed. Otherwise they are suppressed. Default is “false” (whitespace is not allowed).Methods for getting/setting the allowWhiteSpace option are also available:
getAllowWhiteSpace()
andsetAllowWhiteSpace()
$locale
: The locale string used in identifying the characters to filter (locale name, e.g. en_US). If unset, it will use the default locale (Locale::getDefault()
).Methods for getting/setting the locale are also available:
getLocale()
andsetLocale()
Alpha Filter Usage
1 2 3 4 5 6 7 8 9 | // Default settings, deny whitespace
$filter = \Zend\I18n\Filter\Alpha();
echo $filter->filter("This is (my) content: 123");
// Returns "Thisismycontent"
// Allow whitespace
$filter = \Zend\I18n\Filter\Alpha(true);
echo $filter->filter("This is (my) content: 123");
// Returns "This is my content "
|
Note
Note: Alpha
works on almost all languages, except: Chinese, Japanese and Korean. Within these languages the
english alphabet is used instead of the characters from these languages. The language itself is detected using
the Locale
.
NumberFormat Filter¶
The NumberFormat
filter can be used to return locale-specific number and percentage strings. It acts as a
wrapper for the NumberFormatter
class within the Internationalization extension (Intl).
Supported options for NumberFormat Filter
The following options are supported for NumberFormat
:
NumberFormat([ string $locale [, int $style [, int $type ]]])
$locale
: (Optional) Locale in which the number would be formatted (locale name, e.g. en_US). If unset, it will use the default locale (Locale::getDefault()
)Methods for getting/setting the locale are also available:
getLocale()
andsetLocale()
$style
: (Optional) Style of the formatting, one of the format style constants. If unset, it will useNumberFormatter::DEFAULT_STYLE
as the default style.Methods for getting/setting the format style are also available:
getStyle()
andsetStyle()
$type
: (Optional) The formatting type to use. If unset, it will useNumberFormatter::TYPE_DOUBLE
as the default type.Methods for getting/setting the format type are also available:
getType()
andsetType()
NumberFormat Filter Usage
1 2 3 4 5 6 7 8 9 10 11 | $filter = \Zend\I18n\Filter\NumberFormat("de_DE");
echo $filter->filter(1234567.8912346);
// Returns "1.234.567,891"
$filter = \Zend\I18n\Filter\NumberFormat("en_US", NumberFormatter::PERCENT);
echo $filter->filter(0.80);
// Returns "80%"
$filter = \Zend\I18n\Filter\NumberFormat("fr_FR", NumberFormatter::SCIENTIFIC);
echo $filter->filter(0.00123456789);
// Returns "1,23456789E-3"
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