return \PHP_VERSION_ID >= 80000 ? '' : false;
} if ($len >
$rem) { $len =
$rem;
} return implode('', \
array_slice($s[0
],
$start,
$len));
} public static function grapheme_strpos($s,
$needle,
$offset = 0
) { return self::
grapheme_position($s,
$needle,
$offset, 0
);
} public static function grapheme_stripos($s,
$needle,
$offset = 0
) { return self::
grapheme_position($s,
$needle,
$offset, 1
);
} public static function grapheme_strrpos($s,
$needle,
$offset = 0
) { return self::
grapheme_position($s,
$needle,
$offset, 2
);
}