object(MDB2_Error)[26]
  public 'error_message_prefix' => string '' (length=0)
  public 'mode' => int 1
  public 'level' => int 1024
  public 'code' => int -1
  public 'message' => string 'MDB2 Error: unknown error' (length=25)
  public 'userinfo' => string '_doQuery: [Error message: Could not execute statement]
[Last executed query: SELECT article_id AS id FROM article AS a LEFT JOIN article_to_category AS ac ON(a.article_id=ac.article_id AND ac.article_type=a.type) WHERE `type`='articles' AND shared=1 ORDER BY `date` DESC LIMIT 25]
[Native code: 1052]
[Native message: Column 'article_id' in field list is ambiguous]
' (length=366)
  public 'backtrace' => 
    array
      0 => 
        array
          'file' => string '/home/hulk405/iaos/demo/include/pear/MDB2.php' (length=45)
          'line' => int 973
          'function' => string 'PEAR_Error' (length=10)
          'class' => string 'PEAR_Error' (length=10)
          'type' => string '->' (length=2)
          'args' => 
            array
              ...
      1 => 
        array
          'file' => string '/home/hulk405/iaos/demo/include/pear/PEAR.php' (length=45)
          'line' => int 569
          'function' => string 'MDB2_Error' (length=10)
          'class' => string 'MDB2_Error' (length=10)
          'object' => 
            &object(MDB2_Error)[26]
          'type' => string '->' (length=2)
          'args' => 
            array
              ...
      2 => 
        array
          'file' => string '/home/hulk405/iaos/demo/include/pear/MDB2.php' (length=45)
          'line' => int 1442
          'function' => string 'raiseError' (length=10)
          'class' => string 'PEAR' (length=4)
          'object' => 
            object(MDB2_Driver_mysqli)[2]
              ...
          'type' => string '->' (length=2)
          'args' => 
            array
              ...
      3 => 
        array
          'file' => string '/home/hulk405/iaos/demo/include/pear/MDB2/Driver/mysqli.php' (length=59)
          'line' => int 597
          'function' => string 'raiseError' (length=10)
          'class' => string 'MDB2_Driver_Common' (length=18)
          'object' => 
            object(MDB2_Driver_mysqli)[2]
              ...
          'type' => string '->' (length=2)
          'args' => 
            array
              ...
      4 => 
        array
          'file' => string '/home/hulk405/iaos/demo/include/pear/MDB2.php' (length=45)
          'line' => int 2514
          'function' => string '_doQuery' (length=8)
          'class' => string 'MDB2_Driver_mysqli' (length=18)
          'object' => 
            object(MDB2_Driver_mysqli)[2]
              ...
          'type' => string '->' (length=2)
          'args' => 
            array
              ...
      5 => 
        array
          'file' => string '/home/hulk405/iaos/demo/include/classes/article.class.php' (length=57)
          'line' => int 184
          'function' => string 'query' (length=5)
          'class' => string 'MDB2_Driver_Common' (length=18)
          'object' => 
            object(MDB2_Driver_mysqli)[2]
              ...
          'type' => string '->' (length=2)
          'args' => 
            array
              ...
      6 => 
        array
          'file' => string '/home/hulk405/iaos/demo/rss.php' (length=31)
          'line' => int 68
          'function' => string 'getArticlesSet' (length=14)
          'class' => string 'article' (length=7)
          'object' => 
            object(article)[5]
              ...
          'type' => string '->' (length=2)
          'args' => 
            array
              ...
  public 'callback' => null