PHP7.4開発環境をUbuntuに作成

#前提条件
- virtualboxをインストール済
- vagrantをインストール済


```ruby:Vagrantfile
# -*- mode: ruby -*-
# vi: set ft=ruby :

# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure("2") do |config|
  # The most common configuration options are documented and commented below.
  # For a complete reference, please see the online documentation at
  # https://docs.vagrantup.com.

  # Every Vagrant development environment requires a box. You can search for
  # boxes at https://vagrantcloud.com/search.
  config.vm.box = "ubuntu/xenial64"

  # Disable automatic box update checking. If you disable this, then
  # boxes will only be checked for updates when the user runs
  # `vagrant box outdated`. This is not recommended.
  # config.vm.box_check_update = false

  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine. In the example below,
  # accessing "localhost:8080" will access port 80 on the guest machine.
  # NOTE: This will enable public access to the opened port
  config.vm.network "forwarded_port", guest: 80, host: 8080

  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine and only allow access
  # via 127.0.0.1 to disable public access
  # config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"

  # Create a private network, which allows host-only access to the machine
  # using a specific IP.
  config.vm.network "private_network", ip: "192.168.33.10"

  # Create a public network, which generally matched to bridged network.
  # Bridged networks make the machine appear as another physical device on
  # your network.
  # config.vm.network "public_network"

  # Share an additional folder to the guest VM. The first argument is
  # the path on the host to the actual folder. The second argument is
  # the path on the guest to mount the folder. And the optional third
  # argument is a set of non-required options.
  config.vm.synced_folder "./share_folder", "/var/www"

  # Provider-specific configuration so you can fine-tune various
  # backing providers for Vagrant. These expose provider-specific options.
  # Example for VirtualBox:
  #
  config.vm.provider "virtualbox" do |vb|
  #   # Display the VirtualBox GUI when booting the machine
  #   vb.gui = true
  #
  #   # Customize the amount of memory on the VM:
      vb.memory = "2048"
  end
  #
  # View the documentation for the provider you are using for more
  # information on available options.

  # Enable provisioning with a shell script. Additional provisioners such as
  # Ansible, Chef, Docker, Puppet and Salt are also available. Please see the
  # documentation for more information about their specific syntax and use.
  # config.vm.provision "shell", inline: <<-SHELL
  #   apt-get update
  #   apt-get install -y apache2
  # SHELL
end
```

#Ubuntu立ち上げ
プロジェクトディレクトリに上記のVagrantfileを設置後
ubuntuにssh接続

```shell
$ vagrant up
$ vagrant ssh
```

#mysql5.7インストール
```shell
#パッケージをアップデート
$ sudo apt update
# mysql5.7をインストール
$ sudo apt install mysql-server-5.7
#接続確認
$ mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.7.30-0ubuntu0.16.04.1 (Ubuntu)

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>
```

#php7.4をインストール
ubuntuにPPAを追加

```shell
$ sudo add-apt-repository ppa:ondrej/php
$ sudo apt update
```
php7.4をインストール

```shell
$ sudo apt install php7.4
#確認
$ php -v
PHP 7.4.7 (cli) (built: Jun 12 2020 07:43:48) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
    with Zend OPcache v7.4.7, Copyright (c), by Zend Technologies
```

#compserをインストール
```shell
#Composer公式サイトのコードをコピペ
$ php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
   php -r "if (hash_file('sha384', 'composer-setup.php') === 
  'e0012edf3e80b6978849f5eff0d4b4e4c79ff1609dd1e613307e16318854d24ae64f26d17af3ef0bf7cfb710ca74755a') { echo 'Installer verified'; } else { echo 
  'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
  php composer-setup.php
  php -r "unlink('composer-setup.php');"

#composerを移動しpathを通す
$ mv composer.phar /usr/local/bin/composer

#確認
$ composer --version
Composer version 1.10.8 2020-06-24 21:23:30
```

#PHP動作確認

apacheのデフォルト公開ディレクトリは/var/www/htmlなので、
/var/www/html以下にindex.phpを作成しphpの動作確認

```shell
$ cd /var/www
$ mkdir html
$ vi index.php
```

```php:index.php
<?php

echo 'hello php';

```

http:192.168.33.10にアクセスし
hello phpが表示されていればOK