February 2013
Intermediate to advanced
538 pages
20h 55m
English
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Name
array_keys
Synopsis
array array_keys(arrayarray[, mixedvalue[, boolstrict]])
Returns an array containing all of the keys in the given array.
If the second parameter is provided, only keys whose values match
value are returned in the array. If
strict is specified and is true, a matched element is returned only
when it is of the same type and value as
value.
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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.