Only show the comments of a referred PHP file.

onlyShowComments.php

<?php
function commentworker($array, $s = '<br><br>')
{
    if (is_array ($array))
    {
        $output = '';
        foreach ($array as $v)
        {
            $output .= commentworker($v, $s);
        }
        return '<pre>'.$output.'</pre>';
    }
    else
    {
        return $array.$s;
    }
}
 
$file = file_get_contents('../myFile.php');
 
$matches = array();
preg_match_all('/\/\*\*(.*)\*\//smU', $file, $matches);
 
$myoutput = commentworker($matches[0]);
echo $myoutput;
?>