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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 |
---|---|
2313 | ?> |
2314 | <?php else : ?> |
2315 | <?php echo $args['comment_notes_before']; ?> |
2316 | <?php |
2317 | /** |
2318 | * Fires before the comment fields in the comment form. |
2319 | * |
2320 | * @since 3.0.0 |
2321 | */ |
2322 | do_action( 'comment_form_before_fields' ); |
2323 | foreach ( (array) $args['fields'] as $name => $field ) { |
2324 | /** |
2325 | * Filter a comment form field for display. |
2326 | * |
2327 | * The dynamic portion of the filter hook, `$name`, refers to the name |
2328 | * of the comment form field. Such as 'author', 'email', or 'url'. |
2329 | * |
2330 | * @since 3.0.0 |
2331 | * |