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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 |
|---|---|
| 336 | } |
| 337 | |
| 338 | if ( current_user_can($tax->cap->edit_terms) ) { |
| 339 | // Back compat hooks. Deprecated in preference to {$taxonomy}_pre_add_form |
| 340 | if ( 'category' == $taxonomy ) |
| 341 | do_action('add_category_form_pre', (object)array('parent' => 0) ); |
| 342 | elseif ( 'link_category' == $taxonomy ) |
| 343 | do_action('add_link_category_form_pre', (object)array('parent' => 0) ); |
| 344 | else |
| 345 | do_action('add_tag_form_pre', $taxonomy); |
| 346 | |
| 347 | do_action($taxonomy . '_pre_add_form', $taxonomy); |
| 348 | ?> |
| 349 | |
| 350 | <div class="form-wrap"> |
| 351 | <h3><?php echo $tax->labels->add_new_item; ?></h3> |
| 352 | <form id="addtag" method="post" action="edit-tags.php" class="validate"> |
| 353 | <input type="hidden" name="action" value="add-tag" /> |
| 354 | <input type="hidden" name="screen" value="<?php echo esc_attr($current_screen->id); ?>" /> |