(PHP 7, PHP 8)
IntlChar::isULowercase — Check if code point has the Lowercase Unicode property
$codepoint): ?boolCheck if a code point has the Lowercase Unicode property.
This is the same as IntlChar::hasBinaryProperty($codepoint, IntlChar::PROPERTY_LOWERCASE)
注意:
This is different than IntlChar::islower() and will return
truefor more characters.
codepointThe int codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")
Returns true if
codepoint has the Lowercase Unicode property, false if not. Returns null on failure.
示例 #1 Testing different code points
<?php
var_dump(IntlChar::isULowercase("A"));
var_dump(IntlChar::isULowercase("a"));
var_dump(IntlChar::isULowercase("Φ"));
var_dump(IntlChar::isULowercase("φ"));
var_dump(IntlChar::isULowercase("1"));
?>以上示例会输出：
bool(false) bool(true) bool(false) bool(true) bool(false)
IntlChar::PROPERTY_LOWERCASE