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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 |
|---|---|
| 142 | <label class="screen-reader-text" for="new_role"><?php _e( 'Change role to…' ) ?></label> |
| 143 | <select name="new_role" id="new_role"> |
| 144 | <option value=''><?php _e( 'Change role to…' ) ?></option> |
| 145 | <?php wp_dropdown_roles(); ?> |
| 146 | </select> |
| 147 | <?php |
| 148 | submit_button( __( 'Change' ), 'button', 'changeit', false ); |
| 149 | endif; |
| 150 | |
| 151 | do_action( 'restrict_manage_users' ); |
| 152 | echo '</div>'; |
| 153 | } |
| 154 | |
| 155 | function current_action() { |
| 156 | if ( isset($_REQUEST['changeit']) && !empty($_REQUEST['new_role']) ) |
| 157 | return 'promote'; |
| 158 | |
| 159 | return parent::current_action(); |
| 160 | } |