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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 |
---|---|
215 | 'show_option_all' => __( 'View all categories' ), |
216 | 'hide_empty' => 0, |
217 | 'hierarchical' => 1, |
218 | 'show_count' => 0, |
219 | 'orderby' => 'name', |
220 | 'selected' => $cat |
221 | ); |
222 | wp_dropdown_categories( $dropdown_options ); |
223 | } |
224 | do_action( 'restrict_manage_posts' ); |
225 | submit_button( __( 'Filter' ), 'secondary', false, false, array( 'id' => 'post-query-submit' ) ); |
226 | } |
227 |
|
228 | if ( $this->is_trash && current_user_can( $post_type_object->cap->edit_others_posts ) ) { |
229 | submit_button( __( 'Empty Trash' ), 'button-secondary apply', 'delete_all', false ); |
230 | } |
231 | ?> |
232 | </div> |
233 | <?php |