Logger.php

<?php
 
namespace PhpXmlRpc\Helper;
 
class Logger
{
    protected static $instance = null;
 
    public static function instance()
    {
        if (self::$instance === null) {
            self::$instance = new self();
        }
 
        return self::$instance;
    }
 
    public function debugMessage($message, $encoding=null)
    {
        // US-ASCII is a warning for PHP and a fatal for HHVM
        if ($encoding == 'US-ASCII') {
            $encoding = 'UTF-8';
        }
 
        if (PHP_SAPI != 'cli') {
            $flags = ENT_COMPAT | ENT_HTML401 | ENT_SUBSTITUTE;
            if ($encoding != null) {
                print "<PRE>\n".htmlentities($message, $flags, $encoding)."\n</PRE>";
            } else {
                print "<PRE>\n".htmlentities($message, $flags)."\n</PRE>";
            }
        } else {
            print "\n$message\n";
        }
 
        // let the user see this now in case there's a time out later...
        flush();
    }
}