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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 |
---|---|
2372 | * Filters a comment form field for display. |
2373 | * |
2374 | * The dynamic portion of the filter hook, `$name`, refers to the name |
2375 | * of the comment form field. Such as 'author', 'email', or 'url'. |
2376 | * |
2377 | * @since 3.0.0 |
2378 | * |
2379 | * @param string $field The HTML-formatted output of the comment form field. |
2380 | */ |
2381 | echo apply_filters( "comment_form_field_{$name}", $field ) . "\n"; |
2382 |
|
2383 | if ( $last_field === $name ) { |
2384 | /** |
2385 | * Fires after the comment fields in the comment form, excluding the textarea. |
2386 | * |
2387 | * @since 3.0.0 |
2388 | */ |
2389 | do_action( 'comment_form_after_fields' ); |
2390 | } |