tags. */ public function get_css( $post_id, $add_to_parsed = false ) { if ( is_array( $post_id ) ) { $css = ''; foreach ( $post_id as $id ) { $css .= $this->get_css( $id, $add_to_parsed ); } return $css; } if ( ! $post_id || ! is_numeric( $post_id ) || in_array( $post_id, $this->parsed_ids ) ) { return ''; } $css = get_post_meta( $post_id, '_wpb_shortcodes_custom_css', true ); $css = (string) apply_filters( 'vc_shortcodes_custom_css', $css, $post_id ); if ( $css && $add_to_parsed ) { $this->parsed_ids[] = $post_id; } return $css ?: ''; } /** * Get style wrapped in '; } return ''; } /** * Render style. */ public function render_style( $post_id, $add_to_parsed = false ) { echo $this->get_style( $post_id, $add_to_parsed ); } /** * Prevent cloning. */ private function __clone() {} /** * Prevent unserializing. */ public function __wakeup() { trigger_error( 'Cannot unserialize a Singleton.', E_USER_WARNING ); } }