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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 |
---|---|
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 | * |
2332 | * @param string $field The HTML-formatted output of the comment form field. |
2333 | */ |
2334 | echo apply_filters( "comment_form_field_{$name}", $field ) . "\n"; |
2335 | } |
2336 | /** |
2337 | * Fires after the comment fields in the comment form. |
2338 | * |
2339 | * @since 3.0.0 |
2340 | */ |
2341 | do_action( 'comment_form_after_fields' ); |
2342 | ?> |
2343 | <?php endif; ?> |