IntlChar::getPropertyValueEnum()

版本：php7

(PHP 7)

Get the property value for a given value name

说明

publicstaticIntlChar::getPropertyValueEnum(int $property,string $name): int

Returns the property value integer for a given value name, as specified in the Unicode database file PropertyValueAliases.txt. Short, long, and any other variants are recognized.

Note:

Some of the names in PropertyValueAliases.txt will only be recognized with IntlChar::PROPERTY_GENERAL_CATEGORY_MASK, not IntlChar::PROPERTY_GENERAL_CATEGORY. These include:

• "C"/ "Other"
• "L"/ "Letter"
• "LC"/ "Cased_Letter"
• "M"/ "Mark"
• "N"/ "Number"
• "P"/ "Punctuation"
• "S"/ "Symbol"
• "Z"/ "Separator"

参数

$property

The Unicode property to lookup(see theIntlChar::PROPERTY_*constants).

If out of range, or this method doesn't work with the given value,IntlChar::PROPERTY_INVALID_CODE is returned.

$name

The value name to be matched. The name is compared using "loose matching" as described in PropertyValueAliases.txt.

返回值

Returns the corresponding value integer, or IntlChar::PROPERTY_INVALID_CODE if the given name does not match any value of the given property, or if the property is invalid.

范例

Testing different properties

<?php
var_dump(IntlChar::getPropertyValueEnum(IntlChar::PROPERTY_BLOCK, 'greek') === IntlChar::BLOCK_CODE_GREEK);
var_dump(IntlChar::getPropertyValueEnum(IntlChar::PROPERTY_BIDI_CLASS, 'RIGHT_TO_LEFT') === IntlChar::CHAR_DIRECTION_RIGHT_TO_LEFT);
var_dump(IntlChar::getPropertyValueEnum(IntlChar::PROPERTY_BIDI_CLASS, 'some made-up string') === IntlChar::PROPERTY_INVALID_CODE);
var_dump(IntlChar::getPropertyValueEnum(123456789, 'RIGHT_TO_LEFT') === IntlChar::PROPERTY_INVALID_CODE);
?>

以上例程会输出：

bool(true)
bool(true)
bool(true)
bool(true)