WP_Customize_Custom_CSS_Setting::update()publicWP 4.7.0

Store the CSS setting value in the custom_css custom post type for the stylesheet.

{} It's a method of the class: WP_Customize_Custom_CSS_Setting{}

No Hooks.

Return

Int|false. The post ID or false if the value could not be saved.

Usage

$WP_Customize_Custom_CSS_Setting = new WP_Customize_Custom_CSS_Setting();
$WP_Customize_Custom_CSS_Setting->update( $value );
$value(string) (required)
CSS to update.

Changelog

Since 4.7.0 Introduced.
Since 5.9.0 Renamed $css to $value for PHP 8 named parameter support.

Code of WP_Customize_Custom_CSS_Setting::update() WP 6.0

public function update( $value ) {
	// Restores the more descriptive, specific name for use within this method.
	$css = $value;

	if ( empty( $css ) ) {
		$css = '';
	}

	$r = wp_update_custom_css_post(
		$css,
		array(
			'stylesheet' => $this->stylesheet,
		)
	);

	if ( $r instanceof WP_Error ) {
		return false;
	}
	$post_id = $r->ID;

	// Cache post ID in theme mod for performance to avoid additional DB query.
	if ( $this->manager->get_stylesheet() === $this->stylesheet ) {
		set_theme_mod( 'custom_css_post_id', $post_id );
	}

	return $post_id;
}