Description:
------------
---
From manual page: http://www.php.net/function.is-array
---

although only array should become true and should enter inside the if, but strings enter into the is_array() and string is converted into null array.


Test script:
---------------
//a string is passed to the checkString

protected function checkString($str)
    if(is_array($str)) { //only arrays allowed here but string goes into if

        var_dump($str);exit; //string enters here and $str becoumes a null array

    } else {
        
        echo 'ok';

    }
}

result is array(0) { }

Expected result:
----------------
protected function checkString($str)
   if(is_array($str)) { //only arrays allowed here but string goes into if

        var_dump($str);exit; //string enters here and $str becoumes a null array
    
    } else {
        
        echo 'ok';

    }
  
}

result should be 'ok'

Actual result:
--------------
array(0) { }