_deprecated_hook( string $hook, string $version, string $replacement = '', string $message = '' )

5939function _deprecated_hook( $hook, $version, $replacement = '', $message = '' ) {5940	/**5941	 * Fires when a deprecated hook is called.5942	 *5943	 * @since 4.6.05944	 *5945	 * @param string $hook        The hook that was called.5946	 * @param string $replacement The hook that should be used as a replacement.5947	 * @param string $version     The version of WordPress that deprecated the argument used.5948	 * @param string $message     A message regarding the change.5949	 */5950	do_action( 'deprecated_hook_run', $hook, $replacement, $version, $message );5951 5952	/**5953	 * Filters whether to trigger deprecated hook errors.5954	 *5955	 * @since 4.6.05956	 *5957	 * @param bool $trigger Whether to trigger deprecated hook errors. Requires5958	 *                      `WP_DEBUG` to be defined true.5959	 */5960	if ( WP_DEBUG && apply_filters( 'deprecated_hook_trigger_error', true ) ) {5961		$message = empty( $message ) ? '' : ' ' . $message;5962 5963		if ( $replacement ) {5964			$message = sprintf(5965				/* translators: 1: WordPress hook name, 2: Version number, 3: Alternative hook name. */5966				__( 'Hook %1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.' ),5967				$hook,5968				$version,5969				$replacement5970			) . $message;5971		} else {5972			$message = sprintf(5973				/* translators: 1: WordPress hook name, 2: Version number. */5974				__( 'Hook %1$s is <strong>deprecated</strong> since version %2$s with no alternative available.' ),5975				$hook,5976				$version5977			) . $message;5978		}5979 5980		wp_trigger_error( '', $message, E_USER_DEPRECATED );5981	}5982}