March 2017
Intermediate to advanced
364 pages
9h 45m
Japanese
Content preview from 初めてのPHP
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
72
4
章 データのグループ：配列の操作
例4-27 の出力は次の通りです。
Before Sorting:
$meal: breakfast Walnut Bun
$meal: lunch Cashew Nuts and White Mushrooms
$meal: snack Dried Mulberries
$meal: dinner Eggplant with Chili Sauce
After Sorting:
$meal: breakfast Walnut Bun
$meal: dinner Eggplant with Chili Sauce
$meal: snack Dried Mulberries
$meal: lunch Cashew Nuts and White Mushrooms
asort()
関数と同様、
arsort()
関数はキーと値の関係を維持しますが、要素を（値の）降順にソー
トし
ます。W から始まる値を持つ要素が最初になり、C から始まる値を持つ要素が最後になります。
4.5
多次元配列の使用
「4.1 配列の基本」で述べたように、配列要素の値を別の配列にすることができます。これは、
単なるキーと 1 つの値よりも複雑な構造を持つデータの保存をしたいときに役に立ちます。標準
的なキーと値のペアは、食事の種類（
breakfast
や
lunch
など）と1 つの料理（
Walnut Bun
、
Chicken
with Cashew Nuts
など）を対応付けるには適していますが、それぞれの食事に複数の料理がある場 ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.