_deprecated_hook()
Marks a deprecated action or filter hook as deprecated and throws a notice.
Use the deprecated_hook_run action to get the backtrace describing where the deprecated hook was called.
Default behavior is to trigger a user error if WP_DEBUG is true.
This function is called by the do_action_deprecated() and apply_filters_deprecated() functions, and so generally does not need to be called directly.
Internal function — this function is designed to be used by the kernel itself. It is not recommended to use this function in your code.
Hooks from the function
Return
null
. Nothing (null).
Usage
_deprecated_hook( $hook, $version, $replacement, $message );
- $hook(string) (required)
- The hook that was used.
- $version(string) (required)
- The version of WordPress that deprecated the hook.
- $replacement(string)
- The hook that should have been used.
Default: empty string - $message(string)
- A message regarding the change.
Default: ''
Changelog
Since 4.6.0 | Introduced. |
Since 5.4.0 | The error type is now classified as E_USER_DEPRECATED (used to default to E_USER_NOTICE). |
_deprecated_hook() deprecated hook code WP 6.4.3
function _deprecated_hook( $hook, $version, $replacement = '', $message = '' ) { /** * Fires when a deprecated hook is called. * * @since 4.6.0 * * @param string $hook The hook that was called. * @param string $replacement The hook that should be used as a replacement. * @param string $version The version of WordPress that deprecated the argument used. * @param string $message A message regarding the change. */ do_action( 'deprecated_hook_run', $hook, $replacement, $version, $message ); /** * Filters whether to trigger deprecated hook errors. * * @since 4.6.0 * * @param bool $trigger Whether to trigger deprecated hook errors. Requires * `WP_DEBUG` to be defined true. */ if ( WP_DEBUG && apply_filters( 'deprecated_hook_trigger_error', true ) ) { $message = empty( $message ) ? '' : ' ' . $message; if ( $replacement ) { $message = sprintf( /* translators: 1: WordPress hook name, 2: Version number, 3: Alternative hook name. */ __( 'Hook %1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.' ), $hook, $version, $replacement ) . $message; } else { $message = sprintf( /* translators: 1: WordPress hook name, 2: Version number. */ __( 'Hook %1$s is <strong>deprecated</strong> since version %2$s with no alternative available.' ), $hook, $version ) . $message; } wp_trigger_error( '', $message, E_USER_DEPRECATED ); } }