Posted by Sanders Kaufman on 09/11/07 12:57

C. wrote:
> On 11 Sep, 13:20, Sanders Kaufman <bu...@kaufman.net> wrote:
>> I think I finally get the idea of passing by reference, but I'm
>> struggling with the syntax and grammar of it.
>>
>> I've got an object and I want to send it to a function to have its
>> properties modified like so:
>>
>> [code]
>> class MyClass {
>> var $a;
>> function MyClass(){
>> $this->a=0;
>> };
>> }
>> function fnClassify($oClass){
>> $oClass->a = 1;
>> return true;
>> }
>> $oMyClass = new MyClass();
>> echo $oMyClass->a; // displays "0"
>> $bSuccess = fnClassify($oMyClass);
>> echo $oMyClass->a; // displays "1"
>> [/code]
>>
>> Unfortunately, the syntax is wrong somehow. At some point, I should be
>> passing a reference to, instead of the value of, $oMyClass - but I don't
>> know where or how.
>>
>> Can someone help me out here?
>
> I'm confused - do the comments show what you expect to happen? or what
> *did* happen?

They show what I *want* to happen.

> (the code you've posted shouldn't run - you're missing a '}' from the
> method declaration).

OK - it's fixed.
But I'm still not sure where to put my "&" thingies.



> IIRC PHP4 will pass the value of an object but PHP5 will pass a
> reference to the object unless you specifically tell it to do
> something different:
>
> function fnClassify(&$oClass){


So... I should put my ByRef "&" in the function definition, not in the
function call - right?

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