_wp_json_sanity_check( mixed $value, int $depth ): mixed

4402function _wp_json_sanity_check( $value, $depth ) {4403	if ( $depth < 0 ) {4404		throw new Exception( 'Reached depth limit' );4405	}4406 4407	if ( is_array( $value ) ) {4408		$output = array();4409		foreach ( $value as $id => $el ) {4410			// Don't forget to sanitize the ID!4411			if ( is_string( $id ) ) {4412				$clean_id = _wp_json_convert_string( $id );4413			} else {4414				$clean_id = $id;4415			}4416 4417			// Check the element type, so that we're only recursing if we really have to.4418			if ( is_array( $el ) || is_object( $el ) ) {4419				$output[ $clean_id ] = _wp_json_sanity_check( $el, $depth - 1 );4420			} elseif ( is_string( $el ) ) {4421				$output[ $clean_id ] = _wp_json_convert_string( $el );4422			} else {4423				$output[ $clean_id ] = $el;4424			}4425		}4426	} elseif ( is_object( $value ) ) {4427		$output = new stdClass();4428		foreach ( $value as $id => $el ) {4429			if ( is_string( $id ) ) {4430				$clean_id = _wp_json_convert_string( $id );4431			} else {4432				$clean_id = $id;4433			}4434 4435			if ( is_array( $el ) || is_object( $el ) ) {4436				$output->$clean_id = _wp_json_sanity_check( $el, $depth - 1 );4437			} elseif ( is_string( $el ) ) {4438				$output->$clean_id = _wp_json_convert_string( $el );4439			} else {4440				$output->$clean_id = $el;4441			}4442		}4443	} elseif ( is_string( $value ) ) {4444		return _wp_json_convert_string( $value );4445	} else {4446		return $value;4447	}4448 4449	return $output;4450}