Undefined var lolwut

[Utherr12]

i'm getting this error "Undefined variable: bag_space in D:\webserver\game\lib_main.php on line 70"http://pastebin.ca/1980976Why is it giving me that error since my variable is defined :/ (and more than that, its initialized)

[boen_robot]

In PHP, you need to explicitly address the class member. Using simply $bag_space doesn't automatically fall back to the class member, as other C languages do.i.e.

class soul{	public $inventory = array();	public $bag_space = 5;			function AddItem($item)	{		if($this->bag_space==0)		{			return 0;		}		else		{			$this->inventory[] = $item;			$this->bag_space--;		}	}	}$_soul->AddItem("New Item");$_soul->AddItem("NewItem1");$item1 = $_soul->inventory[0];$item2 = $_soul->inventory[1];

[Utherr12]

Damn...i know C++ before php and it's a bit difficult to accommodate to.LE: thanks...now it works like a charm...it's my first very attempt at OOP programming (i dont know oop in c++, i just happened to know some basics, no programming xp whatsoever)I have a quick question: if i have the string " 89" and i use the function to convert to an integer, would it safely convert? because i have a space in front of 89.

[boen_robot]

Try it... I think it should, but if it doesn't, you can always trim() it.

[Utherr12]

Ok, i have another minor headache...i have this:

$phpDB = mysql_connect(...);class soul{	some_method()	{	}}

So in the "some_method" method i want to use the global variable $phpDB (so i dont have to do that for every method), but it returns an error saying that $phpDB is not defined. Isn't $phpDB a global variable that works in any class too ?

[thescientist]

try declaring $phpDB with the global keyword before it. i.e.

global $phpDB = mysql_connect(...);class soul{	some_method()	{	}}

[justsomeguy]

Close.

$phpDB = mysql_connect(...);class soul{	some_method()	{		global $phpDB;	}}

[thescientist]

so close...

[Utherr12]

It says "syntax error" on dreamweaver :/ everytime i add "global" in front of "$phpDB".

[thescientist]

did you try it anyway?

[justsomeguy]

You need the word "function" before the function name.

[Utherr12]

What function ?

[justsomeguy]

The only function being defined.

$phpDB = mysql_connect(...);class soul{	function some_method()	{		global $phpDB;	}}

[Utherr12]

that's not the problem i just forgot to mention that in my posthere's how it looks in my code: http://pastebin.ca/1985135If i try to use that method it will return an error saying that $phpDB is not defined :/

[Synook]

Using the global statement doesn't change anything? That may be because you are closing the connection immediately after defining the class...

[Utherr12]

Using the global statement doesn't change anything? That may be because you are closing the connection immediately after defining the class...

Then when should i close it? I don't like keeping useless things opened >.<. I was thinking of opening the connection in my main page then...and only IF i opened it should the class methods work.So its like this: main.php <-- where i open the connection $phpDB and define $_soul = new Soul(); then use some methods from lib_main.php (where i keep all the objects) that have in the sql statements of mysql_query that $phpDB, then i could close it in main.php after i'm finished.--OR--I could skip all this and just won't close it. Would it do any harm if i don't close an mysql connection in php ?

[Synook]

Connections are closed automatically when the script ends, so unless you are opening lots and lots of connections on one page it shouldn't be a problem at all. Only when using persistent connections do you really need to worry about when things are closed.

[Utherr12]

ok...so which is the correct variant ? putting the global keyword at declaration or every time i call it in my methods?

[Synook]

In the methods.