Unset semantic on instance var

Hi,

try:

---

class A
{
protected $a;
public function __construct()
{
if(!isset($this->a))
{
$this->a = 'd';
echo '1st';
}
unset($this->a);
if(!isset($this->a))
{
$this->a = 'g';
echo '2nd';
}
}

 public function __set($columnName, $value)
 {
     echo 'New value : ' . $value . ' for '. $columnName;
 }

}

new A();

---

unset mean removing the instance variable from the class!!

I was using the lazy initialisation with the isset function but then
now I will initalize all inst var with null and check with the is_null
function.

Would it be possible to have inst var null by default insthead of a
pseudo unset/null variable.
Thanks

Cheers

• Mathieu Suen