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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 |
|---|---|
| 152 | } else { |
| 153 | |
| 154 | /** |
| 155 | * Fires before the administration menu loads in the admin. |
| 156 | * |
| 157 | * @since 1.5.0 |
| 158 | * |
| 159 | * @param string $context Empty context. |
| 160 | */ |
| 161 | do_action( 'admin_menu', '' ); |
| 162 | } |
| 163 | |
| 164 | /* |
| 165 | * Remove menus that have no accessible submenus and require privileges |
| 166 | * that the user does not have. Run re-parent loop again. |
| 167 | */ |
| 168 | foreach ( $menu as $id => $data ) { |
| 169 | if ( ! current_user_can( $data[1] ) ) { |
| 170 | $_wp_menu_nopriv[ $data[2] ] = true; |