(PHP 7, PHP 8)
IntlChar::ispunct — Check if code point is punctuation character
$codepoint): ?boolDetermines whether the specified code point is a punctuation character.
true for characters with general categories "P" (punctuation).
codepointThe int codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")
Returns true if
codepoint is a punctuation character, false if not. Returns null on failure.
示例 #1 Testing different code points
<?php
var_dump(IntlChar::ispunct("."));
var_dump(IntlChar::ispunct(","));
var_dump(IntlChar::ispunct("\n"));
var_dump(IntlChar::ispunct("$"));以上示例会输出：
bool(true) bool(true) bool(false) bool(false)