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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 |
---|---|
535 | * Possible hook names include: |
536 | * |
537 | * - `category_add_form_fields` |
538 | * - `post_tag_add_form_fields` |
539 | * |
540 | * @since 3.0.0 |
541 | * |
542 | * @param string $taxonomy The taxonomy slug. |
543 | */ |
544 | do_action( "{$taxonomy}_add_form_fields", $taxonomy ); |
545 | ?> |
546 | <p class="submit"> |
547 | <?php submit_button( $tax->labels->add_new_item, 'primary', 'submit', false ); ?> |
548 | <span class="spinner"></span> |
549 | </p> |
550 | <?php |
551 | if ( 'category' === $taxonomy ) { |
552 | /** |
553 | * Fires at the end of the Edit Category form. |