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.
20.4
ソートと比較
309
Content-Type: text/plain; charset=ISO-2022-JP
Content-Transfer-Encoding: 7bit
こんにちは、鈴木タロウ
さん
20.4
ソートと比較
PHP に組み込まれているテキストソートおよび比較関数も、英語のアルファベットの文字順に
従ってバイト単位で動作します。文字を意識した方法でこの操作を行うには
Collator
クラスを利
用します。
まず、
Collator
オブジェクトを作成し、コンストラクタにロケール文字列を渡します。この文
字列は特定の国や言語を参照し、使うべきルールを
Collator
に通知します。ロケール文字列には
細かな決まり（http://userguide.icu-project.org/locale）がたくさんありますが、通常は 2 文字の言
語コード、
_
、そして 2 文字の国コードで構成されます。例えば、アメリカ英語は
en_US
、ベルギー
フランス語は
fr_BE
、韓国語は
ko_KR
になります。言語コードと国コードを示すのは、さまざまな
国で 1 つの言語を異なる方法で使うことを許すためです。
sort()
メソッドは組み込みの
sort()
関数と同じことを行いますが、言語を意識した方法で行い
ます。
sort()
メソッドは配列値を適切にソートします。例20-6 にこの関数の動作を示します。
例
20-6
配列のソート
＊1
//
アメリカ英語
$en = new Collator('en_US');
//
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.