<?php preg_split( string $pattern, string $subject, int $limit = -1, int $flags = 0): array|false
<?php public static function emoji(string $emoji): self { $chars = preg_split('//u', $emoji, null, PREG_SPLIT_NO_EMPTY); $codepoints = array_map( fn (string $code): string => dechex(mb_ord($code)),
