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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 167 | * Filter the list of hidden meta boxes. |
| 168 | * |
| 169 | * @since 3.3.0 |
| 170 | * |
| 171 | * @param array $hidden An array of hidden meta boxes. |
| 172 | * @param WP_Screen $screen WP_Screen object of the current screen. |
| 173 | * @param bool $use_defaults Whether to show the default meta boxes. |
| 174 | * Default true. |
| 175 | */ |
| 176 | return apply_filters( 'hidden_meta_boxes', $hidden, $screen, $use_defaults ); |
| 177 | } |
| 178 | |
| 179 | /** |
| 180 | * Register and configure an admin screen option |
| 181 | * |
| 182 | * @since 3.1.0 |
| 183 | * |
| 184 | * @param string $option An option name. |
| 185 | * @param mixed $args Option-dependent arguments. |