Posted by "A.J. Brown" on 09/27/05 23:29

Lowell,

The "->" operator was taken from the pointer operator in C. It's used to
access a method or variable within an INSTANCE of an object, as opposed to
the "::" operator, which is used to access a static method of a class. Note
the difference between a class and an object -- an object is an instance of
a class.

if Run() is a static method (I.E. it has no references to "$this") and
"$site" is an instance of "SiteClass", the following are equivalent:

$site->Run();
SiteClass::Run();

If you're still confused, I can go further into the difference between an
Object and a Class.

--

Sincerely,

A.J. Brown
BitNotion Technologies


"Lowell Herbert" <lherbert@pdsportal.com> wrote in message
news:89AE1FAA-9939-4B28-BD4E-71CBEAC2E7EF@pdsportal.com...
>
> On Sep 27, 2005, at 2:16 PM, Mikey wrote:
>
>> Lowell Herbert wrote:
>>
>>
>>> I'm trying to expand my understanding of PHP by looking at some pre-
>>> built code modules. I don't fully understand the syntax "$site->Run
>>> ();" in the following code. Can someone offer a helpful explanation?
>>>
>>> <?php
>>>
>>> //define("PB_CRYPT_LINKS" , 1);
>>> define("_LIBPATH","./lib/");
>>> require_once _LIBPATH . "site.php";
>>>
>>> $site = new CSite("./site.xml",true);
>>> $site->Run();
>>>
>>> ?>
>>>
>>
>> Run() is a method of the CSite class - you will need to look in the
>> defination of that class to find out what it does,
>>
>> Mikey
>>
>
> Thanks for all the responses. I understand that $site is an instance of
> the class CSite, and that Run() is a function in that class. I do not
> understand what the operater "->" means, and what meaning the result of
> the function Run() has to $site. Clarification anyone?
>
> Thanks in advance,
> Lowell

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