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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 | } |