What are the potential pitfalls of using PHP to manipulate client-side elements?

Potential pitfalls of using PHP to manipulate client-side elements include increased server load, slower response times, and reduced scalability. To avoid these issues, it is recommended to use client-side languages like JavaScript for manipulating elements on the client side.

// Example of using JavaScript instead of PHP to manipulate client-side elements
<script>
    document.getElementById("elementId").innerHTML = "New content";
</script>