Title: WP_Style_Engine_CSS_Rule::get_css
Published: November 2, 2022
Last modified: April 28, 2025

---

# WP_Style_Engine_CSS_Rule::get_css( bool $should_prettify = false, int $indent_count ): string

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_css/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_css/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_css/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_css/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_css/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_css/?output_format=md#wp--skip-link--target)

Gets the CSS.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_css/?output_format=md#parameters)󠁿

 `$should_prettify`booloptional

Whether to add spacing, new lines and indents.

Default:`false`

`$indent_count`intoptional

The number of tab indents to apply to the rule.
 Applies if `prettify` is `true`.
Default 0.

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_css/?output_format=md#return)󠁿

 string

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_css/?output_format=md#source)󠁿

    ```php
    public function get_css( $should_prettify = false, $indent_count = 0 ) {
    	$rule_indent                = $should_prettify ? str_repeat( "\t", $indent_count ) : '';
    	$nested_rule_indent         = $should_prettify ? str_repeat( "\t", $indent_count + 1 ) : '';
    	$declarations_indent        = $should_prettify ? $indent_count + 1 : 0;
    	$nested_declarations_indent = $should_prettify ? $indent_count + 2 : 0;
    	$suffix                     = $should_prettify ? "\n" : '';
    	$spacer                     = $should_prettify ? ' ' : '';
    	// Trims any multiple selectors strings.
    	$selector         = $should_prettify ? implode( ',', array_map( 'trim', explode( ',', $this->get_selector() ) ) ) : $this->get_selector();
    	$selector         = $should_prettify ? str_replace( array( ',' ), ",\n", $selector ) : $selector;
    	$rules_group      = $this->get_rules_group();
    	$has_rules_group  = ! empty( $rules_group );
    	$css_declarations = $this->declarations->get_declarations_string( $should_prettify, $has_rules_group ? $nested_declarations_indent : $declarations_indent );

    	if ( empty( $css_declarations ) ) {
    		return '';
    	}

    	if ( $has_rules_group ) {
    		$selector = "{$rule_indent}{$rules_group}{$spacer}{{$suffix}{$nested_rule_indent}{$selector}{$spacer}{{$suffix}{$css_declarations}{$suffix}{$nested_rule_indent}}{$suffix}{$rule_indent}}";
    		return $selector;
    	}

    	return "{$rule_indent}{$selector}{$spacer}{{$suffix}{$css_declarations}{$suffix}{$rule_indent}}";
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/style-engine/class-wp-style-engine-css-rule.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/style-engine/class-wp-style-engine-css-rule.php#L164)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/style-engine/class-wp-style-engine-css-rule.php#L164-L188)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_css/?output_format=md#related)󠁿

| Uses | Description | 
| [WP_Style_Engine_CSS_Rule::get_rules_group()](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_rules_group/)`wp-includes/style-engine/class-wp-style-engine-css-rule.php` |

Gets the rules group.

  | 
| [WP_Style_Engine_CSS_Rule::get_selector()](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_selector/)`wp-includes/style-engine/class-wp-style-engine-css-rule.php` |

Gets the full selector.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wp_style_engine_css_rule/get_css/?output_format=md#changelog)󠁿

| Version | Description | 
| [6.6.0](https://developer.wordpress.org/reference/since/6.6.0/) | Added support for nested CSS with rules groups. | 
| [6.1.0](https://developer.wordpress.org/reference/since/6.1.0/) | Introduced. |

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