Hello All -
I'm learning OOP (from many years of procedural) and have a quick question regarding the use of using global vars in objects.
In many of my previous projects I've written a config file that sets a number of basic project properties. One of these properties is "\n". As all my content (html tags, head tags, body tags, etc) were script-generated, I always separated each tag (and each line of tag-content) with new lines so that - in code view - it was easier to read/review.
So, in my config file, I'd set a var like so: $snl = "\n";
Then I'd declare $snl as a global in any function that needed it and then simply typed $snl as required.
I've tested this in a few objects and, as long I declared "global $snl" in the constructor, it works fine.
But, I've also read on the web that this technique of using globals within objects is frowned upon as - in the words of one poster - it goes against the purpose of a self-contained object.
So, since I'm just learning this stuff, is this poster correct? If so, is there a better way to feed these small bit's of config data to various objects without having to pass them to the constructor upon instantiation, or type them verbatim directly into each object?
Should I (could I?) use a config object for this kind of data and then pass that object to other objects that need it?
I'm not trying to over complicate the issue, but I'm very keen on learning this correctly so all advice and "best practice" illumination on this subject would be greatly appreciated.
