Gzip on the fly -- PPI

gistfile1.txt

<?php
$generic = array('bootstrap.min','layout','website');
$files = array_merge($generic, $core['files']['css']);

foreach($files as $file): 
    
    $path    = 'css/' . $file;
    $gzipped = $path . '.css.cgz';
    
    if (!file_exists($gzipped)) {        
        $fdata = file_get_contents($path . '.css');
        file_put_contents($gzipped, gzencode($fdata, 9));
    }
?>
<link type="text/css" href="<?php echo $baseUrl; ?>css/<?=$file; ?>.css.cgz" rel='stylesheet' />
<?php endforeach; ?>