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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 |
|---|---|
| 2600 | */ |
| 2601 | echo apply_filters( "comment_form_field_{$name}", $field ) . "\n"; |
| 2602 | |
| 2603 | if ( $last_field === $name ) { |
| 2604 | /** |
| 2605 | * Fires after the comment fields in the comment form, excluding the textarea. |
| 2606 | * |
| 2607 | * @since 3.0.0 |
| 2608 | */ |
| 2609 | do_action( 'comment_form_after_fields' ); |
| 2610 | } |
| 2611 | } |
| 2612 | } |
| 2613 | |
| 2614 | $submit_button = sprintf( |
| 2615 | $args['submit_button'], |
| 2616 | esc_attr( $args['name_submit'] ), |
| 2617 | esc_attr( $args['id_submit'] ), |
| 2618 | esc_attr( $args['class_submit'] ), |