2012/3/9 Lazare Inepologlou <[email protected]>
>
> Type casting combined with passing by reference is problematic in many ways.
> Just an example:
>
> fuction foo( string & $buffer) { ... }
> foo( $my_buffer );
>
> Here, $my_buffer has just been declared, so it is null. Should this be an
> error? I don't know! So, I think that that passing by reference should not be
> (immediately) supported.
>
Hi, Lazare
This should at least throw an E_NOTICE :) And also an error as NULL is
not allowed here.
Let me modify your example:
fuction foo( string & $buffer = NULL) { ... }
foo( $my_buffer );
This would only raise the E_NOTICE because the variable has not been declared.
Or would you say that NULL is equal with an empty string (talking
about implicit casting)? I would not like that, but if, don't let it
be (int)0 or (bool)false as well.
Bye
Simon
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