Is it more efficient to use JavaScript or PHP for determining the currently loaded page in a frame and updating the navigation accordingly?

To determine the currently loaded page in a frame and update the navigation accordingly, it is more efficient to use JavaScript. JavaScript can easily access and manipulate the DOM elements on the page, making it simpler to identify the current page and update the navigation dynamically. 

<?php
// This is a JavaScript code snippet that can be used to determine the currently loaded page in a frame and update the navigation accordingly
<script>
    // Get the current URL
    var currentUrl = window.location.href;
    
    // Update the navigation based on the current URL
    if(currentUrl.includes("page1.php")) {
        document.getElementById("page1").classList.add("active");
    } else if(currentUrl.includes("page2.php")) {
        document.getElementById("page2").classList.add("active");
    } else if(currentUrl.includes("page3.php")) {
        document.getElementById("page3").classList.add("active");
    }
</script>
?>

Keywords

JavaScript PHP frame navigation efficiency

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