March 2017
Intermediate to advanced
364 pages
9h 45m
Japanese
Content preview from 初めてのPHP
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282
16
章 パッケージ管理
16.2
プログラムへのパッケージの追加
require
コマンドでパッケージをプログラムに追加します。少なくとも、
require
には追加する
パッケージ名を指定する必要があります。例16-1 は、プログラムに Swift Mailer を追加します。
例
16-1
require
でのパッケージの追加
php composer.phar require swiftmailer/swiftmailer
このコマンドはパッケージをダウンロードし、パッケージのファイルを現在のプロジェクトディ
レクトリのvendor というディレクトリにインストールし、composer.json ファイルを更新します。
composer.json ファイルは、インストールしたパッケージと Composer が管理するプロジェクトに
関する他の設定を管理します。また、Composer は composer.lock ファイルも保持し、このファイ
ルはインスト
ールしたパッケージの具体的なバージョンを管理します。
Composer でパッケージをインストールしたら、プログラムでパッケージを使えるようにするに
は、
require "vendor/autoload.php;"
という簡単な PHP コード行で Composer オートロードファ
イルを参照するだけです。このファイルのロジックには、クラス名からファイル名へのマッピング
が含まれます。インストールしたパッケージのクラスを参照すると、そのクラスを定義したファイ ...
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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.
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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.