代码转到后页以及焦点所在的位置

I want code to go back to previous page plus where I was. I am using code written below to go back to previous page but it doesn't go back to the part of page where the focus was previously.

echo "<meta http-equiv=\"refresh\" content=\"0;url=".$_SERVER['HTTP_REFERER']."\"/>";

Using the meta refresh method launches a new request. If you trigger the browser's "back" button with javascript, it should return to the previous page while keeping the "location" where you were:

<script type="text/javascript">
  history.back();
  // Or alternatively..
  history.go(-1);
</script>