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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 |
---|---|
2202 | * Filter a comment form field for display. |
2203 | * |
2204 | * The dynamic portion of the filter hook, $name, refers to the name |
2205 | * of the comment form field. Such as 'author', 'email', or 'url'. |
2206 | * |
2207 | * @since 3.0.0 |
2208 | * |
2209 | * @param string $field The HTML-formatted output of the comment form field. |
2210 | */ |
2211 | echo apply_filters( "comment_form_field_{$name}", $field ) . "\n"; |
2212 | } |
2213 | /** |
2214 | * Fires after the comment fields in the comment form. |
2215 | * |
2216 | * @since 3.0.0 |
2217 | */ |
2218 | do_action( 'comment_form_after_fields' ); |
2219 | ?> |
2220 | <?php endif; ?> |