How can a PHP beginner effectively convert image URLs from a database into actual image outputs on a webpage?

To convert image URLs from a database into actual image outputs on a webpage, a PHP beginner can use the `echo` function to output an HTML `img` tag with the image URL as the `src` attribute. This will display the image on the webpage.

<?php
// Assuming $imageURL contains the URL of the image from the database
echo "<img src='$imageURL' alt='Image'>";
?>