JeevesBond wrote: In PHP

davecoventry — Sun, 12 Jul 2009 19:26:56 +0000

JeevesBond wrote:

In PHP determining if an function already exists is done by calling function_exists('function_name'). I don't believe it's a good idea to declare functions in multiple places though. :)

Indeed! Horrible Hack.

One of my blocks already used the function and when the page which had my PHP on it was called it tried to define the same function which generated an error message about being unable to redefine the function.

The quick fix was to change the name slightly, but, as you say, it's not good and I need to rewrite it so that it only defines the function if it hasn't been previously defined.

At the moment I'm giving the

JeevesBond — Sun, 12 Jul 2009 19:07:47 +0000

At the moment I'm giving the function a slightly different name and defining it at the head of each instance.

Am not sure what the word 'instance' means here. That does sound quite ghaslty though.

In PHP determining if an function already exists is done by calling function_exists('function_name'). I don't believe it's a good idea to declare functions in multiple places though.

Still on namespaces; I've

davecoventry — Sun, 12 Jul 2009 07:44:47 +0000

Still on namespaces; I've got a procedure that I use to push the results of my SQL query onto an array in a particular format.

I use this same array in a number of instances.

Is there a way I can check to see if the function is already defined?

At the moment I'm giving the function a slightly different name and defining it at the head of each instance. Obviously, this is not best practice...

I would use variable_set()

JeevesBond — Fri, 10 Jul 2009 19:45:48 +0000

I would use variable_set() and variable_get().

Then, assuming you're writing a module, put a call to variable_del() into the module's hook_uninstall().

You could also use globals, just make sure they're appropriate for what you're trying to do. Globals can be evil if used improperly (naming collisions, functions unexpectedly changing their values and such).

Right. that's very

davecoventry — Fri, 10 Jul 2009 19:17:00 +0000

Right.

that's very useful.

Thanks Greg.

You could have a file that

Greg K — Fri, 10 Jul 2009 17:43:00 +0000

You could have a file that is included:

davevars.php:
$GLOBALS['foo'] = array('Stacks','of different','values an','array);

Then in your other code , do a
require_once('path/to/davevars.php');

I use the $GLOBALS['foo'] instead of just $foo, so that the include can be called from anywhere (even inside a function or class), and it will still be accessible everywhere.

While outside of a classes/functions you can directly access it as $foo, I still prefer to do $GLOBAL['foo'] so that later going back I know I'm accessing something that would be used as a "global" value.

-Greg