$this->AuthTblCols[$colname] == 0 => false

Encountered a bug in the bugreport system: Warning: Could not execute mail delivery program in local/Web/sites/phpweb/bugs.php on line 412 Operating system: SuSE 6.2 / Linux 2.4.2

  PHP version:      4.0.4pl1
  PHP Bug Type:     Scripting Engine problem

Bug description: $this->AuthTblCols[$colname] == 0 => false Short: In a class "if ($this->arr[$keyname] != 0);" will allways be false. Long: <? class Auth {

    var $AuthTblCols = array('login'      => 'login',
                             'passwd'     => 'passwd',
                             'access_lvl' => 0,
                             'last_login' => 0);

//.... snip ....

     function ColOK($colname, $str) {
      print_r("<pre>ColOK:");

var_dump($this->AuthTblCols[$colname]);print_r("</pre>"); /* returns string 'access_lvl' (see under) */

        if (!empty($this->AuthTblCols[$colname]) &&

            !($this->AuthTblCols[$colname] == 0)

/* The Line above will allways evaluate false!!?! at first I had: $this->AuthTblCols[$colname] != 0 But it also evaluates false.*/

        ) {

print_r("HERE");

           return (empty($str)?true:$str);
        }
        return false;
     }
      function somefunc() {

// a func inside the class will call ColOK()

        if (!$str = $this->ColOK('access_lvl',
                                 "somestring I want returned")) echo "Not

ok"; //.... snip .... } $auth = new Auth();

  $auth->AuthTblCols = array('login'      => 'login',
                             'passwd'     => 'passwd',
                             'access_lvl' => 'access_lvl',
                             'last_login' => 'last_login');

if (!$auth->A_func_that_will_run_somefunc()) {

    echo "Invalid login/password";
    exit;

} ?> Any ideas?