How can rollover links be created in PHP without the need to create separate graphics for each button?

To create rollover links in PHP without the need for separate graphics, you can use CSS to style the links with hover effects. By defining different styles for the default and hover states of the links, you can achieve the rollover effect without the need for separate images.

<style>
a {
    color: blue;
    text-decoration: none;
}

a:hover {
    color: red;
}
</style>

<a href="#">Link Text</a>