ajax get html response
//your jquery code will be like this:
$.ajax({
type: 'POST',
url: $url,
data: new FormData(this),
dataType: 'json',
contentType: false,
processData:false,//this is a must
success: function(response){
$('your_selector').html(response);
}
});
//php code will be like this
echo '<div>some html code</div>';
die();