wp_kses_attr_parse( string $element ): array|false

1677function wp_kses_attr_parse( $element ) {1678	$valid = preg_match( '%^(<\s*)(/\s*)?([a-zA-Z0-9]+\s*)([^>]*)(>?)$%', $element, $matches );1679	if ( 1 !== $valid ) {1680		return false;1681	}1682 1683	$begin  = $matches[1];1684	$slash  = $matches[2];1685	$elname = $matches[3];1686	$attr   = $matches[4];1687	$end    = $matches[5];1688 1689	if ( '' !== $slash ) {1690		// Closing elements do not get parsed.1691		return false;1692	}1693 1694	// Is there a closing XHTML slash at the end of the attributes?1695	if ( 1 === preg_match( '%\s*/\s*$%', $attr, $matches ) ) {1696		$xhtml_slash = $matches[0];1697		$attr        = substr( $attr, 0, -strlen( $xhtml_slash ) );1698	} else {1699		$xhtml_slash = '';1700	}1701 1702	// Split it.1703	$attrarr = wp_kses_hair_parse( $attr );1704	if ( false === $attrarr ) {1705		return false;1706	}1707 1708	// Make sure all input is returned by adding front and back matter.1709	array_unshift( $attrarr, $begin . $slash . $elname );1710	array_push( $attrarr, $xhtml_slash . $end );1711 1712	return $attrarr;1713}