prep_atom_text_construct( string $data ): array

588function prep_atom_text_construct( $data ) {589	if ( ! str_contains( $data, '<' ) && ! str_contains( $data, '&' ) ) {590		return array( 'text', $data );591	}592 593	if ( ! function_exists( 'xml_parser_create' ) ) {594		wp_trigger_error( '', __( "PHP's XML extension is not available. Please contact your hosting provider to enable PHP's XML extension." ) );595 596		return array( 'html', "<![CDATA[$data]]>" );597	}598 599	$parser = xml_parser_create();600	xml_parse( $parser, '<div>' . $data . '</div>', true );601	$code = xml_get_error_code( $parser );602 603	if ( PHP_VERSION_ID < 80000 ) { // xml_parser_free() has no effect as of PHP 8.0.604		xml_parser_free( $parser );605	}606 607	unset( $parser );608 609	if ( ! $code ) {610		if ( ! str_contains( $data, '<' ) ) {611			return array( 'text', $data );612		} else {613			$data = "<div xmlns='http://www.w3.org/1999/xhtml'>$data</div>";614			return array( 'xhtml', $data );615		}616	}617 618	if ( ! str_contains( $data, ']]>' ) ) {619		return array( 'html', "<![CDATA[$data]]>" );620	} else {621		return array( 'html', htmlspecialchars( $data ) );622	}623}