apply_filters_deprecated( 'media_buttons_context', string $string )

685	 *686	 * @since 2.5.0687	 * @deprecated 3.5.0 Use {@see 'media_buttons'} action instead.688	 *689	 * @param string $string Media buttons context. Default empty.690	 */691	$legacy_filter = apply_filters_deprecated( 'media_buttons_context', array( '' ), '3.5.0', 'media_buttons' );692 693	if ( $legacy_filter ) {694		// #WP22559. Close <a> if a plugin started by closing <a> to open their own <a> tag.695		if ( 0 === stripos( trim( $legacy_filter ), '</a>' ) ) {696			$legacy_filter .= '</a>';697		}