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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 |
---|---|
728 | </tbody> |
729 | </table> |
730 | <?php endif; |
731 |
|
732 | /** |
733 | * Fires just before the submit button in the custom header options form. |
734 | * |
735 | * @since 3.1.0 |
736 | */ |
737 | do_action( 'custom_header_options' ); |
738 |
|
739 | wp_nonce_field( 'custom-header-options', '_wpnonce-custom-header-options' ); ?> |
740 |
|
741 | <?php submit_button( null, 'primary', 'save-header-options' ); ?> |
742 | </form> |
743 | </div> |
744 |
|
745 | <?php } |
746 |
|