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Editing: car_location.php

<?php

class Stm_Car_Location_Widget extends WP_Widget {

/**
	 * Register widget with WordPress.
	 */
	public function __construct() {
		parent::__construct(
			'car_location', // Base ID.
			__( 'Car Location', 'stm_motors_extends' ), // Name.
			array( 'description' => __( 'Use this widget on single listing page to display Google Map with car location.', 'stm_motors_extends' ) ) // Args.
		);
	}

/**
	 * Front-end display of widget.
	 *
	 * @see WP_Widget::widget()
	 *
	 * @param array $args     Widget arguments.
	 * @param array $instance Saved values from database.
	 */
	public function widget( $args, $instance ) {
		$title = apply_filters( 'widget_title', $instance['title'] );

echo $args['before_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
		if ( ! empty( $title ) ) {
			echo $args['before_title'] . esc_html( $title ) . $args['after_title']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
		}

$id = get_the_ID();

$car_lat      = get_post_meta( $id, 'stm_lat_car_admin', true );
		$car_lng      = get_post_meta( $id, 'stm_lng_car_admin', true );
		$car_location = get_post_meta( $id, 'stm_car_location', true );

if ( ! empty( $car_lat ) && $car_lng && $car_location ) {
			stm_dealer_gmap( $car_lat, $car_lng );
		}

echo $args['after_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
	}

/**
	 * Back-end widget form.
	 *
	 * @see WP_Widget::form()
	 *
	 * @param array $instance Previously saved values from database.
	 */
	public function form( $instance ) {

$title = '';

if ( isset( $instance['title'] ) ) {
			$title = $instance['title'];
		} else {
			$title = '';
		}

?>
		<p>
			<label for="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>"><?php esc_html_e( 'Title:', 'stm_motors_extends' ); ?></label>
			<input class="widefat" id="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>">
		</p>
		<?php
	}

/**
	 * Sanitize widget form values as they are saved.
	 *
	 * @see WP_Widget::update()
	 *
	 * @param array $new_instance Values just sent to be saved.
	 * @param array $old_instance Previously saved values from database.
	 *
	 * @return array Updated safe values to be saved.
	 */
	public function update( $new_instance, $old_instance ) {
		$instance          = array();
		$instance['title'] = ( ! empty( $new_instance['title'] ) ) ? esc_attr( $new_instance['title'] ) : '';

return $instance;
	}

}

function stm_register_car_location_widget() {
	register_widget( 'Stm_Car_Location_Widget' );
}
add_action( 'widgets_init', 'stm_register_car_location_widget' );

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