has_shortcode( string $content, string $tag ): bool

149function has_shortcode( $content, $tag ) {150	if ( ! str_contains( $content, '[' ) ) {151		return false;152	}153 154	if ( shortcode_exists( $tag ) ) {155		preg_match_all( '/' . get_shortcode_regex() . '/', $content, $matches, PREG_SET_ORDER );156		if ( empty( $matches ) ) {157			return false;158		}159 160		foreach ( $matches as $shortcode ) {161			if ( $tag === $shortcode[2] ) {162				return true;163			} elseif ( ! empty( $shortcode[5] ) && has_shortcode( $shortcode[5], $tag ) ) {164				return true;165			}166		}167	}168	return false;169}