What are some best practices for dynamically adjusting the size of an iframe in PHP to accommodate changes in the external website's content?

When embedding an external website in an iframe, the content within the iframe may change dynamically, causing the iframe size to be inadequate. To address this issue, we can use JavaScript to dynamically adjust the height of the iframe based on the content's height. By using PHP to generate the JavaScript code, we can ensure that the iframe resizes appropriately as the external content changes. 

<?php
echo '<script>
    window.addEventListener("message", function(event) {
        if (event.data && event.data.type === "resize") {
            var iframe = document.getElementById("myIframe");
            iframe.style.height = event.data.height + "px";
        }
    });
</script>';
?>

Keywords

PHP iframe dynamic sizing external website content changes

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