Ubuntu 22.04 LTSにPHP 8.1 をインストールする方法

環境
OSバージョンを確認します

# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=22.04
DISTRIB_CODENAME=jammy
DISTRIB_DESCRIPTION="Ubuntu 22.04 LTS"

PHP 8.1のインストール手順
1.PHP 8.1 をインストールします

# apt -y install php8.1 php8.1-mbstring php-pear

2.phpバージョンを確認します

# php -v
PHP 8.1.2 (cli) (built: Apr  7 2022 17:46:26) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.1.2, Copyright (c) Zend Technologies
    with Zend OPcache v8.1.2, Copyright (c), by Zend Technologies

3.テストスクリプトを作成します

# echo '<?php echo `php -i`."\n"; ?>’ > test.php
# php test.php | head

実行結果

phpinfo()
PHP Version => 8.1.2

System => Linux arte-virtual-machine 5.15.0-33-generic #34-Ubuntu SMP Wed May 18 13:34:26 UTC 2022 x86_64
Build Date => Apr  7 2022 17:46:26
Build System => Linux
Server API => Command Line Interface
Virtual Directory Support => disabled
Configuration File (php.ini) Path => /etc/php/8.1/cli
Loaded Configuration File => /etc/php/8.1/cli/php.ini

 

Ubuntu 22.04

Posted by arkgame