What is the purpose of a 2Top Button in a website and how can it be implemented using PHP?

The purpose of a 2Top button on a website is to allow users to quickly scroll back to the top of the page without manually scrolling. This button is typically placed at the bottom of the page and is especially useful for long pages with a lot of content. To implement a 2Top button using PHP, you can add a button element in your HTML code that is hidden by default. Then, use JavaScript to show the button when the user scrolls down a certain distance. When the button is clicked, it should smoothly scroll back to the top of the page. 

<!-- HTML code -->
<button onclick="topFunction()" id="myBtn" title="Go to top">Top</button>

<!-- JavaScript code -->
<script>
//Get the button
var mybutton = document.getElementById("myBtn");

// When the user scrolls down 20px from the top of the document, show the button
window.onscroll = function() {scrollFunction()};

function scrollFunction() {
  if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
    mybutton.style.display = "block";
  } else {
    mybutton.style.display = "none";
  }
}

// When the user clicks on the button, scroll to the top of the document
function topFunction() {
  document.body.scrollTop = 0; // For Safari
  document.documentElement.scrollTop = 0; // For Chrome, Firefox, IE and Opera
}
</script>

Keywords

Scroll Top Button Website Implementation PHP

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