IntlChar::hasBinaryProperty()
版本:php7
(PHP 7)
Check a binary Unicode property for a code point
说明
public static IntlChar::hasBinaryProperty(mixed $codepoint,int $property): bool
Checks a binary Unicode property for a code point.
Unicode, especially in version 3.2, defines many more properties than the original set in UnicodeData.txt.
The properties APIs are intended to reflect Unicode properties as defined in the Unicode Character Database(UCD)and Unicode Technical Reports(UTR). For details about the properties see » http://www.unicode.org/ucd/. For names of Unicode properties see the UCD file PropertyAliases.txt.
参数
- $codepoint
The integer codepoint value(e.g.0x2603forU+2603 SNOWMAN), or the character encoded as a UTF-8 string(e.g."u{2603}")
- $property
The Unicode property to lookup(see theIntlChar::PROPERTY_*constants).
返回值
Returns TRUE
or FALSE
according to the binary Unicode property value for$codepoint. Also FALSE
if$propertyis out of bounds or if the Unicode version does not have data for the property at all, or not for this code point.
范例
Testing different properties
<?php var_dump(IntlChar::hasBinaryProperty("A", IntlChar::PROPERTY_ALPHABETIC)); var_dump(IntlChar::hasBinaryProperty("A", IntlChar::PROPERTY_CASE_SENSITIVE)); var_dump(IntlChar::hasBinaryProperty("A", IntlChar::PROPERTY_BIDI_MIRRORED)); var_dump(IntlChar::hasBinaryProperty("[", IntlChar::PROPERTY_ALPHABETIC)); var_dump(IntlChar::hasBinaryProperty("[", IntlChar::PROPERTY_CASE_SENSITIVE)); var_dump(IntlChar::hasBinaryProperty("[", IntlChar::PROPERTY_BIDI_MIRRORED)); ?>
以上例程会输出:
bool(true) bool(true) bool(false) bool(false) bool(false) bool(true)
参见
- IntlChar::getIntPropertyValue() Get the value for a Unicode property for a code point
- IntlChar::getUnicodeVersion() Get the Unicode version