Shawn McKenzie wrote:
> Sylvain Rabot wrote:
>> Hello,
>>
>> First of all I would like to know if one day we will be able to unset
>> $this into a class in order to destroy the object. It could really be
>> useful to prevent big memory usage.
>>
>> As it can't be done I tried to unset an object by unsetting a reference
>> of this object but it has no effect on the object but only on the
>> reference.
>>
>> Should unset destroy the reference itself and the object ???
>>
>> if you don't think so can you think of something different to destroy
>> both of them like I don't know, destroy($obejctsreference)
>>
>> Regards.
>>
>> Reproduce code:
>> ---------------
>> <?
>>
>> $x = new stdClass();
>> $x->a = 'ayayaye';
>>
>> $b[0] =& $x;
>>
>> unset($b[0]);
>>
>> var_dump($x);
>>
>> ?>
>>
>> Expected result:
>> ----------------
>> NULL
>>
>> Actual result:
>> --------------
>> object(stdClass)#1 (1) {
>> ["a"]=>
>> string(7) "ayayaye"
>> }
>
> So if you unset a reference you are dereferencing it. If you want to
> unset both, then unset the object, in this case $x.
>
> -Shawn
Actually dereference was obviously the wrong word. You are actually
just destroying the reference.
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