This script allows generation of random colours for CSS markup.

RandomColors.php

<?php
/**
 * A simple php script to generate random CSS colors at each request.
 */
$hsl = rand(0, 240) . ',' . rand(50, 80) . '%,60%';
?>

<style type="text/css">
a {
  color: hsl(<?php echo $hsl ?>);
}
</style>