WP_Theme_JSON_Resolver::get_user_data() WordPress Method

	public static function get_user_data() {
		if ( null !== static::$user ) {
			return static::$user;
		}

		$config   = array();
		$user_cpt = static::get_user_data_from_wp_global_styles( wp_get_theme() );

		if ( array_key_exists( 'post_content', $user_cpt ) ) {
			$decoded_data = json_decode( $user_cpt['post_content'], true );

			$json_decoding_error = json_last_error();
			if ( JSON_ERROR_NONE !== $json_decoding_error ) {
				trigger_error( 'Error when decoding a theme.json schema for user data. ' . json_last_error_msg() );
				return new WP_Theme_JSON( $config, 'custom' );
			}

			// Very important to verify that the flag isGlobalStylesUserThemeJSON is true.
			// If it's not true then the content was not escaped and is not safe.
			if (
				is_array( $decoded_data ) &&
				isset( $decoded_data['isGlobalStylesUserThemeJSON'] ) &&
				$decoded_data['isGlobalStylesUserThemeJSON']
			) {
				unset( $decoded_data['isGlobalStylesUserThemeJSON'] );
				$config = $decoded_data;
			}
		}
		static::$user = new WP_Theme_JSON( $config, 'custom' );

		return static::$user;
	}