ajax data

<form id="myform">
	<button type="submit" name="comments" class="show_comments" value="<?php echo $row['id']; ?>">Show Comments</button>
	<?php echo $comments; ?> <i class="far fa-comment"></i></button>
	<p><input type="hidden" name="id" value="<?php echo $row['id']; ?>"></p>
</form>

			<script>
			$(document).ready(function() {
				$('.show_comments').on('click', show)
			})
				
				function show(e) {
					e.preventDefault()
					$.ajax({
						type: 'POST',
						url: 'comments.php',
						/*data: $(this).serialize(), */
						data: {id: id}, 
						success: function(data) {
							alert(data)
						}
					})
				}
			
			</script>