IntlChar::getPropertyValueEnum

    (PHP 7, PHP 8)

    IntlChar::getPropertyValueEnum — Get the property value for a given value name

    说明

    public static IntlChar::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.

    注意:

    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 the IntlChar::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.

    示例

    示例 #1 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);
    ?>

    以上示例会输出：

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

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