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Also, personally speaking I avoid such shortcuts. C programmers love to write weird conditions that take hours to figure out. That's not so critical when performance is not the major factor. If I have a php script that goes to page two, I write something really bloody obvious like
if ($page2 == "yes")
// --- Page TWO section ----------------
...because even though it takes more effort now, it means I'll be able to figure out what I did a year from now, when I've forgotten the whole project and the client wants me to change the whole thing.
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