Adding WordPress Dashboard Widget

dashboard.php

/**
 * Add a widget to the dashboard.
 *
 * This function is hooked into the 'wp_dashboard_setup' action below.
 */
function dewploy_add_dashboard_widgets() {
	// Add function here
	wp_add_dashboard_widget(
		'dewploy_dashboard_widget',                          	// Widget slug.
		esc_html__( 'Holiday Sitters Widget', 'dewploy' ), 	// Title.
		'dewploy_dashboard_widget_render'                    	// Display function.
	); 
}
add_action( 'wp_dashboard_setup', 'dewploy_add_dashboard_widgets' );