What are the potential drawbacks of using PHP for client-side functionality like adding smilies to a guestbook?

Potential drawbacks of using PHP for client-side functionality like adding smilies to a guestbook include increased server load and slower page load times as PHP scripts need to be executed on the server-side for every user interaction. To mitigate this, consider using JavaScript for client-side functionality as it can run directly in the user's browser without the need for server-side processing. 

// Example PHP code for adding smilies to a guestbook using JavaScript instead
<script>
function addSmiley() {
  // Code to add smiley to guestbook using JavaScript
}
</script>

Keywords

PHP client-side functionality smilies guestbook drawbacks

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