WP_HTML_Processor::is_void( string $tag_name ): bool

Source

public static function is_void( $tag_name ) {
	$tag_name = strtoupper( $tag_name );

	return (
		'AREA' === $tag_name ||
		'BASE' === $tag_name ||
		'BASEFONT' === $tag_name || // Obsolete but still treated as void.
		'BGSOUND' === $tag_name || // Obsolete but still treated as void.
		'BR' === $tag_name ||
		'COL' === $tag_name ||
		'EMBED' === $tag_name ||
		'FRAME' === $tag_name ||
		'HR' === $tag_name ||
		'IMG' === $tag_name ||
		'INPUT' === $tag_name ||
		'KEYGEN' === $tag_name || // Obsolete but still treated as void.
		'LINK' === $tag_name ||
		'META' === $tag_name ||
		'PARAM' === $tag_name || // Obsolete but still treated as void.
		'SOURCE' === $tag_name ||
		'TRACK' === $tag_name ||
		'WBR' === $tag_name
	);
}

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