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class Image_Widget extends WP_Widget { // Constructor function function __construct() { parent::__construct( 'image_widget', 'Image Widget', array( 'description' => 'Displays an image' ) ); } // Widget output function function widget( $args, $instance ) { echo $args['before_widget']; // Check if the image URL is set if ( ! empty( $instance['image_url'] ) ) { echo '<img src="' . esc_url( $instance['image_url'] ) . '" />'; } echo $args['after_widget']; } // Widget form function function form( $instance ) { $image_url = ! empty( $instance['image_url'] ) ? $instance['image_url'] : ''; ?> <p> <label for="<?php echo $this->get_field_id( 'image_url' ); ?>">Image URL:</label> <input type="text" class="widefat" id="<?php echo $this->get_field_id( 'image_url' ); ?>" name="<?php echo $this->get_field_name( 'image_url' ); ?>" value="<?php echo esc_attr( $image_url ); ?>" /> </p> <?php } // Widget update function function update( $new_instance, $old_instance ) { $instance = array(); $instance['image_url'] = ! empty( $new_instance['image_url'] ) ? strip_tags( $new_instance['image_url'] ) : ''; return $instance; } } // Register the widget function register_image_widget() { register_widget( 'Image_Widget' ); } add_action( 'widgets_init', 'register_image_widget' );