RE: [PHP] What is "->" mean in php?

Because I'm not a hacker on the PHP engine, I don't really know but I also saw this symbol when learning C++ recently. It is used in C++ as a shortcut to dereferencing and accessing an objects properties/methods on objects which are on the free store (heap). Normally C++ uses the dot operator to access methods/properties (eg. "foo.do()"), but when the object needs to first be dereferenced, then "foo->do()" can be used as a shortcut to "(*foo).do()". Of course, this doesn't help you at all does it :) But I thought it was an interesting connection to C++ and maybe hints at how PHP internally manages objects. Perhaps it's just a coincidence. [TK] > -----Original Message----- > From: S.Murali Krishna [mailto:smk_bk@yahoo.com] > Sent: Monday, 4 March 2002 9:48 PM > To: Jack > Cc: php-general@lists.php.net > Subject: Re: [PHP] What is "->" mean in php? > > > > If you have any Object Oriented Programming experience, then > you may not had asked this. Its a operator to access methods, > and variables inside a instance of a class , in which the > variable before "->" is the instance of the class and the > latter is a method or variable of that class. This is what I > know, if you have any explanatory docs, pls let me know. > > > > On Mon, 4 Mar 2002, Jack wrote: > > > Dear all > > There is one symbol in PHP that i always see is "->", could > anyone pls > > tell me what is this, and what does that do? Here is the > statement i > > saw could some pls explain what it means? > > > > if (!empty($row->usd_period) > > > > Thx a lot > > Jack > > jack@nedcor.com > > > > > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > <smk_bk@yahoo.com> > ------------------------------------------------------------------- > We must use time wisely and forever realize that the time is > always ripe to do right." > > -- Nelson Mandela > ------------------------------------------------------------------- > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php >