wp-includes/class-wp-customize-section.php:237Gather the parameters passed to client JavaScript via JSON.
array public function json() { $array = wp_array_slice_assoc( (array) $this, array( 'id', 'description', 'priority', 'panel', 'type', 'description_hidden' ) ); $array['title'] = html_entity_decode( $this->title, ENT_QUOTES, get_bloginfo( 'charset' ) ); $array['content'] = $this->get_content(); $array['active'] = $this->active(); $array['instanceNumber'] = $this->instance_number; if ( $this->panel ) { /* translators: ▸ is the unicode right-pointing triangle. %s: Section title in the Customizer. */ $array['customizeAction'] = sprintf( __( 'Customizing ▸ %s' ), esc_html( $this->manager->get_panel( $this->panel )->title ) ); } else { $array['customizeAction'] = __( 'Customizing' ); } return $array; }Introduced in 4.1.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-customize-section.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.