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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 |
---|---|
2695 | * |
2696 | * The submit field includes the submit button, hidden fields for the |
2697 | * comment form, and any wrapper markup. |
2698 | * |
2699 | * @since 4.2.0 |
2700 | * |
2701 | * @param string $submit_field HTML markup for the submit field. |
2702 | * @param array $args Arguments passed to comment_form(). |
2703 | */ |
2704 | echo apply_filters( 'comment_form_submit_field', $submit_field, $args ); |
2705 |
|
2706 | /** |
2707 | * Fires at the bottom of the comment form, inside the closing form tag. |
2708 | * |
2709 | * @since 1.5.0 |
2710 | * |
2711 | * @param int $post_id The post ID. |
2712 | */ |
2713 | do_action( 'comment_form', $post_id ); |