(PHP 7, PHP 8)
IntlChar::ispunct — Check if code point is punctuation character
public static IntlChar::ispunct(int|string $codepoint): ?bool
Determines whether the specified code point is a punctuation character.
true for characters with general categories "P" (punctuation).
Returns true if codepoint is a punctuation character, false if not. Returns null on failure.
Example #1 Testing different code points
<?php
var_dump(IntlChar::ispunct("."));
var_dump(IntlChar::ispunct(","));
var_dump(IntlChar::ispunct("\n"));
var_dump(IntlChar::ispunct("$")); The above example will output:
bool(true) bool(true) bool(false) bool(false)
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https://www.php.net/manual/en/intlchar.ispunct.php