wp php woo update price

update_price.php

<?php  

function divie_all_products_woo_edit(){

	$euro_rate = get_option('divie_euro_rate') ? get_option('divie_euro_rate') : '';
	$euro_rate =  floatval($euro_rate);
	if(!empty($euro_rate) && is_float($euro_rate) && $euro_rate > 0){

		$args = array( 
		    'post_type' => array(  'product',),
		    'posts_per_page' => -1, 
		);
		$the_query = new WP_Query( $args );

		global $post;
		if ( $the_query->have_posts() ) :
		while ( $the_query->have_posts() ) : $the_query->the_post();
		$euro = get_post_meta( $post->ID, '_euro_rate', true );

		if(!empty($euro)){
			$euro =  floatval($euro);
			// $price = get_post_meta($post->ID, '_regular_price');
			$price = round( $euro * $euro_rate, 2 );
			$price = (float)$price;
			update_post_meta( $post->ID, '_regular_price', $price );
			update_post_meta($post->ID, '_price',           $price );
		}
		endwhile;
		endif;
		wp_reset_query(); 
	}

}