IntlChar::hasBinaryProperty
(PHP 7, PHP 8)
IntlChar::hasBinaryProperty — Check a binary Unicode property for a code point
Description
$codepoint, int $property): ?boolChecks 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.
Parameters
-
codepoint -
The int codepoint value (e.g.
0x2603for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g."\u") -
property -
The Unicode property to lookup (see the
IntlChar::PROPERTY_*constants).
Return Values
Returns true or false according to the binary Unicode property value for codepoint.
Also false if property is out of bounds or if the Unicode version does not have data for
the property at all, or not for this code point. Returns null on failure.
Examples
Example #1 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));
?>
The above example will output:
bool(true) bool(true) bool(false) bool(false) bool(false) bool(true)
See Also
- IntlChar::getIntPropertyValue() - Get the value for a Unicode property for a code point
- IntlChar::getUnicodeVersion() - Get the Unicode version
