Working draft of a PHP Debug class

Debug.php

<?php

  class Debug
  {
    protected $dumps  = array();
    
    static protected function getEmptyDump($type = 'log', $back = 1) {
      $d    = debug_backtrace();
      return array(
        'type'  => $type,
        'file'  => $d[$back]['file'],
        'line'  => $d[$back]['line']
      );
    }
    
    public function dump($var) {
      $vars = func_get_args();
      $dump = self::getEmptyDump();
      $dump['vars'] = array();
      foreach($vars as $key => $value) {
        if(is_object($value) && !is_a($value, 'stdClass')) {
          $value = array(
            'class' => get_class($value),
            'id'    => spl_object_hash($value),
            'attr'  => get_object_vars($value)
          );
        }
        $dump['vars'][]   = $value;
      }
      $this->dumps[] = $dump;
    }
    
    public function warn($warning) {
      $dump = self::getEmptyDump('warn');
      $dump['msg'] = $warning;
      $this->dumps[]   = $dump;
    }
    
    public function toJs() {
      $js = '';
      foreach($this->dumps as $dump) {
        if($dump['type'] === 'log') {
          $js .= 'console.log(\'PHP:\','.json_encode((object)$dump['vars']).',\''.stripslashes($dump['file']).':'.$dump['line'].'\');';
        } else {
          $js .= 'console.warn(\'PHP: '.stripslashes($dump['msg']).'\');';
        }
      }
      return $js;
    }
    
    public function toHeader() {
      $hash = spl_object_hash($this);
      foreach($this->dumps as $k => $dump) {
        $id = $hash.'-'.$k;
        if($dump['type'] === 'log') {
          header('PHPrint-'.$id.'-source: ' . $dump['file'].' on line '.$dump['line']);
          foreach($dump['vars'] as $i => $v) {
            header('PHPrint-'.$id.'-'.$i.'-value: '. json_encode($v));
          }
        } else {
          header('PHPrint-'.$id.'-warning: ' . $dump['msg']);
        }
      }
    }
  }
  
  $d = new Debug;
  
  $d->dump('test','ok');
  $d->dump(array('test'));
  $d->dump($d);
  $d->warn('Ne pas oublier de supprimer les dumps');
  $d->toHeader();
  echo '<script>' . $d->toJs() . '</script>';

?>