How can JavaScript be integrated with PHP to display content in a new window without creating additional files?

To display content in a new window without creating additional files, you can use JavaScript to open a new window and pass the content from PHP to be displayed. This can be achieved by using JavaScript's window.open() method along with PHP's echo function to output the content.

<?php
$content = "This is the content to be displayed in the new window.";
echo "<script>";
echo "var content = '" . $content . "';";
echo "var newWindow = window.open('', '_blank');";
echo "newWindow.document.write(content);";
echo "</script>";
?>