February 2013
Intermediate to advanced
538 pages
20h 55m
English
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Name
unset
Synopsis
void unset(mixedvar[, mixedvar2[, ... mixedvarN]])
Destroys the given variables. A global variable called within
function scope only unsets the
local copy of that variable; to destroy a global variable, you must
call unset on the value in the
$GLOBALS array instead. A variable
in function scope passed by reference destroys only the local copy of
that variable.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.