目次
WordPress のサイトヘルスで更新を推奨されました
先日公開された WordPress を 5.5 に更新してから、サイトヘルスの画面にいくつか更新が推奨されるようになりました。

WordPress 5.5 から PHP の最低推奨バージョンが 7.4 以上になっていたため、7.3 でも古いと言われる始末。この環境作ったのはブログの履歴をみると昨年1月だったので、1年版くらい前ですか。当時は7.4はまだ早すぎるという判断をしていた気がしますが、現状ではこれが最低ラインになるくらいに開発が進んでいるわけですね。
せっかくなので久々にサーバの環境を少しアップデートしてみました。
PHP の入れ替え作業
ほぼターミナルに表示された内容のコピペですが、こんな感じで作業。
現在インストールされているパッケージの確認
# yum list installed php*  
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: mirrors.cat.net
 * epel: ftp.iij.ad.jp
 * extras: ty1.mirror.newmediaexpress.com
 * remi-safe: ftp.riken.jp
 * updates: ty1.mirror.newmediaexpress.com
Installed Packages
php.x86_64                                                                                           7.3.17-1.el7.remi                                                                       @remi-php73
php-bcmath.x86_64                                                                                    7.3.17-1.el7.remi                                                                       @remi-php73
php-cli.x86_64                                                                                       7.3.17-1.el7.remi                                                                       @remi-php73
php-common.x86_64                                                                                    7.3.17-1.el7.remi                                                                       @remi-php73
php-devel.x86_64                                                                                     7.3.17-1.el7.remi                                                                       @remi-php73
php-fedora-autoloader.noarch                                                                         1.0.1-2.el7                                                                             @epel      
php-fpm.x86_64                                                                                       7.3.17-1.el7.remi                                                                       @remi-php73
php-gd.x86_64                                                                                        7.3.17-1.el7.remi                                                                       @remi-php73
php-json.x86_64                                                                                      7.3.17-1.el7.remi                                                                       @remi-php73
php-mbstring.x86_64                                                                                  7.3.17-1.el7.remi                                                                       @remi-php73
php-mysqlnd.x86_64                                                                                   7.3.17-1.el7.remi                                                                       @remi-php73
php-opcache.x86_64                                                                                   7.3.17-1.el7.remi                                                                       @remi-php73
php-pdo.x86_64                                                                                       7.3.17-1.el7.remi                                                                       @remi-php73
php-pear.noarch                                                                                      1:1.10.12-1.el7.remi                                                                    @remi-php73
php-pecl-apcu.x86_64                                                                                 5.1.18-1.el7.remi.7.3                                                                   @remi-php73
php-pecl-imagick.x86_64                                                                              3.4.4-10.el7.remi.7.3                                                                   @remi-php73
php-pecl-mcrypt.x86_64                                                                               1.0.3-1.el7.remi.7.3                                                                    @remi-php73
php-pecl-zip.x86_64                                                                                  1.18.2-1.el7.remi.7.3                                                                   @remi-php73
php-php-gettext.noarch                                                                               1.0.12-1.el7                                                                            @epel      
php-process.x86_64                                                                                   7.3.17-1.el7.remi                                                                       @remi-php73
php-snmp.x86_64                                                                                      7.3.17-1.el7.remi                                                                       @remi-php73
php-tcpdf.noarch                                                                                     6.2.26-1.el7                                                                            @epel      
php-tcpdf-dejavu-sans-fonts.noarch                                                                   6.2.26-1.el7                                                                            @epel      
php-tidy.x86_64                                                                                      7.3.17-1.el7.remi                                                                       @remi-php73
php-xml.x86_64                                                                                       7.3.17-1.el7.remi                                                                       @remi-php73
phpMyAdmin.noarch                                                                                    4.4.15.10-4.el7                                                                         @epel
php関連のパッケージを削除
# yum remove php*
Loaded plugins: fastestmirror, langpacks
Resolving Dependencies
--> Running transaction check
---> Package php.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-bcmath.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-cli.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-common.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-devel.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-fedora-autoloader.noarch 0:1.0.1-2.el7 will be erased
---> Package php-fpm.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-gd.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-json.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-mbstring.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-mysqlnd.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-opcache.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-pdo.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-pear.noarch 1:1.10.12-1.el7.remi will be erased
---> Package php-pecl-apcu.x86_64 0:5.1.18-1.el7.remi.7.3 will be erased
---> Package php-pecl-imagick.x86_64 0:3.4.4-10.el7.remi.7.3 will be erased
---> Package php-pecl-mcrypt.x86_64 0:1.0.3-1.el7.remi.7.3 will be erased
---> Package php-pecl-zip.x86_64 0:1.18.2-1.el7.remi.7.3 will be erased
---> Package php-php-gettext.noarch 0:1.0.12-1.el7 will be erased
---> Package php-process.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-snmp.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-tcpdf.noarch 0:6.2.26-1.el7 will be erased
---> Package php-tcpdf-dejavu-sans-fonts.noarch 0:6.2.26-1.el7 will be erased
---> Package php-tidy.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package php-xml.x86_64 0:7.3.17-1.el7.remi will be erased
---> Package phpMyAdmin.noarch 0:4.4.15.10-4.el7 will be erased
--> Finished Dependency Resolution
Dependencies Resolved
========================================================================================================================================================================================================
 Package                                                    Arch                                  Version                                              Repository                                  Size
========================================================================================================================================================================================================
Removing:
 php                                                        x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                 10 M
 php-bcmath                                                 x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                 94 k
 php-cli                                                    x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                 15 M
 php-common                                                 x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                 12 M
 php-devel                                                  x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                 11 M
 php-fedora-autoloader                                      noarch                                1.0.1-2.el7                                          @epel                                       15 k
 php-fpm                                                    x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                5.0 M
 php-gd                                                     x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                212 k
 php-json                                                   x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                 88 k
 php-mbstring                                               x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                2.1 M
 php-mysqlnd                                                x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                837 k
 php-opcache                                                x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                1.0 M
 php-pdo                                                    x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                378 k
 php-pear                                                   noarch                                1:1.10.12-1.el7.remi                                 @remi-php73                                2.1 M
 php-pecl-apcu                                              x86_64                                5.1.18-1.el7.remi.7.3                                @remi-php73                                224 k
 php-pecl-imagick                                           x86_64                                3.4.4-10.el7.remi.7.3                                @remi-php73                                937 k
 php-pecl-mcrypt                                            x86_64                                1.0.3-1.el7.remi.7.3                                 @remi-php73                                100 k
 php-pecl-zip                                               x86_64                                1.18.2-1.el7.remi.7.3                                @remi-php73                                194 k
 php-php-gettext                                            noarch                                1.0.12-1.el7                                         @epel                                       57 k
 php-process                                                x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                187 k
 php-snmp                                                   x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                105 k
 php-tcpdf                                                  noarch                                6.2.26-1.el7                                         @epel                                       11 M
 php-tcpdf-dejavu-sans-fonts                                noarch                                6.2.26-1.el7                                         @epel                                      1.5 M
 php-tidy                                                   x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                105 k
 php-xml                                                    x86_64                                7.3.17-1.el7.remi                                    @remi-php73                                820 k
 phpMyAdmin                                                 noarch                                4.4.15.10-4.el7                                      @epel                                       24 M
Transaction Summary
========================================================================================================================================================================================================
Remove  26 Packages
Installed size: 99 M
Is this ok [y/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Erasing    : phpMyAdmin-4.4.15.10-4.el7.noarch                                                                                                                                                   1/26 
warning: /etc/phpMyAdmin/config.inc.php saved as /etc/phpMyAdmin/config.inc.php.rpmsave
warning: /etc/httpd/conf.d/phpMyAdmin.conf saved as /etc/httpd/conf.d/phpMyAdmin.conf.rpmsave
  Erasing    : 1:php-pear-1.10.12-1.el7.remi.noarch                                                                                                                                                2/26 
  Erasing    : php-php-gettext-1.0.12-1.el7.noarch                                                                                                                                                 3/26 
  Erasing    : php-tcpdf-dejavu-sans-fonts-6.2.26-1.el7.noarch                                                                                                                                     4/26 
  Erasing    : php-tcpdf-6.2.26-1.el7.noarch                                                                                                                                                       5/26 
  Erasing    : php-fedora-autoloader-1.0.1-2.el7.noarch                                                                                                                                            6/26 
  Erasing    : php-devel-7.3.17-1.el7.remi.x86_64                                                                                                                                                  7/26 
  Erasing    : php-7.3.17-1.el7.remi.x86_64                                                                                                                                                        8/26 
  Erasing    : php-cli-7.3.17-1.el7.remi.x86_64                                                                                                                                                    9/26 
  Erasing    : php-bcmath-7.3.17-1.el7.remi.x86_64                                                                                                                                                10/26 
  Erasing    : php-gd-7.3.17-1.el7.remi.x86_64                                                                                                                                                    11/26 
  Erasing    : php-mbstring-7.3.17-1.el7.remi.x86_64                                                                                                                                              12/26 
  Erasing    : php-process-7.3.17-1.el7.remi.x86_64                                                                                                                                               13/26 
  Erasing    : php-tidy-7.3.17-1.el7.remi.x86_64                                                                                                                                                  14/26 
  Erasing    : php-xml-7.3.17-1.el7.remi.x86_64                                                                                                                                                   15/26 
  Erasing    : php-mysqlnd-7.3.17-1.el7.remi.x86_64                                                                                                                                               16/26 
  Erasing    : php-pdo-7.3.17-1.el7.remi.x86_64                                                                                                                                                   17/26 
  Erasing    : php-pecl-zip-1.18.2-1.el7.remi.7.3.x86_64                                                                                                                                          18/26 
  Erasing    : php-snmp-7.3.17-1.el7.remi.x86_64                                                                                                                                                  19/26 
  Erasing    : php-opcache-7.3.17-1.el7.remi.x86_64                                                                                                                                               20/26 
warning: /etc/php.d/10-opcache.ini saved as /etc/php.d/10-opcache.ini.rpmsave
  Erasing    : php-pecl-imagick-3.4.4-10.el7.remi.7.3.x86_64                                                                                                                                      21/26 
  Erasing    : php-fpm-7.3.17-1.el7.remi.x86_64                                                                                                                                                   22/26 
  Erasing    : php-pecl-apcu-5.1.18-1.el7.remi.7.3.x86_64                                                                                                                                         23/26 
  Erasing    : php-pecl-mcrypt-1.0.3-1.el7.remi.7.3.x86_64                                                                                                                                        24/26 
  Erasing    : php-json-7.3.17-1.el7.remi.x86_64                                                                                                                                                  25/26 
  Erasing    : php-common-7.3.17-1.el7.remi.x86_64                                                                                                                                                26/26 
warning: /etc/php.ini saved as /etc/php.ini.rpmsave
  Verifying  : phpMyAdmin-4.4.15.10-4.el7.noarch                                                                                                                                                   1/26 
  Verifying  : 1:php-pear-1.10.12-1.el7.remi.noarch                                                                                                                                                2/26 
  Verifying  : php-pecl-mcrypt-1.0.3-1.el7.remi.7.3.x86_64                                                                                                                                         3/26 
  Verifying  : php-gd-7.3.17-1.el7.remi.x86_64                                                                                                                                                     4/26 
  Verifying  : php-tcpdf-dejavu-sans-fonts-6.2.26-1.el7.noarch                                                                                                                                     5/26 
  Verifying  : php-common-7.3.17-1.el7.remi.x86_64                                                                                                                                                 6/26 
  Verifying  : php-pecl-apcu-5.1.18-1.el7.remi.7.3.x86_64                                                                                                                                          7/26 
  Verifying  : php-pecl-zip-1.18.2-1.el7.remi.7.3.x86_64                                                                                                                                           8/26 
  Verifying  : php-bcmath-7.3.17-1.el7.remi.x86_64                                                                                                                                                 9/26 
  Verifying  : php-xml-7.3.17-1.el7.remi.x86_64                                                                                                                                                   10/26 
  Verifying  : php-cli-7.3.17-1.el7.remi.x86_64                                                                                                                                                   11/26 
  Verifying  : php-fpm-7.3.17-1.el7.remi.x86_64                                                                                                                                                   12/26 
  Verifying  : php-pecl-imagick-3.4.4-10.el7.remi.7.3.x86_64                                                                                                                                      13/26 
  Verifying  : php-tidy-7.3.17-1.el7.remi.x86_64                                                                                                                                                  14/26 
  Verifying  : php-mbstring-7.3.17-1.el7.remi.x86_64                                                                                                                                              15/26 
  Verifying  : php-tcpdf-6.2.26-1.el7.noarch                                                                                                                                                      16/26 
  Verifying  : php-fedora-autoloader-1.0.1-2.el7.noarch                                                                                                                                           17/26 
  Verifying  : php-json-7.3.17-1.el7.remi.x86_64                                                                                                                                                  18/26 
  Verifying  : php-devel-7.3.17-1.el7.remi.x86_64                                                                                                                                                 19/26 
  Verifying  : php-opcache-7.3.17-1.el7.remi.x86_64                                                                                                                                               20/26 
  Verifying  : php-snmp-7.3.17-1.el7.remi.x86_64                                                                                                                                                  21/26 
  Verifying  : php-process-7.3.17-1.el7.remi.x86_64                                                                                                                                               22/26 
  Verifying  : php-mysqlnd-7.3.17-1.el7.remi.x86_64                                                                                                                                               23/26 
  Verifying  : php-pdo-7.3.17-1.el7.remi.x86_64                                                                                                                                                   24/26 
  Verifying  : php-php-gettext-1.0.12-1.el7.noarch                                                                                                                                                25/26 
  Verifying  : php-7.3.17-1.el7.remi.x86_64                                                                                                                                                       26/26 
Removed:
  php.x86_64 0:7.3.17-1.el7.remi                  php-bcmath.x86_64 0:7.3.17-1.el7.remi         php-cli.x86_64 0:7.3.17-1.el7.remi                  php-common.x86_64 0:7.3.17-1.el7.remi            
  php-devel.x86_64 0:7.3.17-1.el7.remi            php-fedora-autoloader.noarch 0:1.0.1-2.el7    php-fpm.x86_64 0:7.3.17-1.el7.remi                  php-gd.x86_64 0:7.3.17-1.el7.remi                
  php-json.x86_64 0:7.3.17-1.el7.remi             php-mbstring.x86_64 0:7.3.17-1.el7.remi       php-mysqlnd.x86_64 0:7.3.17-1.el7.remi              php-opcache.x86_64 0:7.3.17-1.el7.remi           
  php-pdo.x86_64 0:7.3.17-1.el7.remi              php-pear.noarch 1:1.10.12-1.el7.remi          php-pecl-apcu.x86_64 0:5.1.18-1.el7.remi.7.3        php-pecl-imagick.x86_64 0:3.4.4-10.el7.remi.7.3  
  php-pecl-mcrypt.x86_64 0:1.0.3-1.el7.remi.7.3   php-pecl-zip.x86_64 0:1.18.2-1.el7.remi.7.3   php-php-gettext.noarch 0:1.0.12-1.el7               php-process.x86_64 0:7.3.17-1.el7.remi           
  php-snmp.x86_64 0:7.3.17-1.el7.remi             php-tcpdf.noarch 0:6.2.26-1.el7               php-tcpdf-dejavu-sans-fonts.noarch 0:6.2.26-1.el7   php-tidy.x86_64 0:7.3.17-1.el7.remi              
  php-xml.x86_64 0:7.3.17-1.el7.remi              phpMyAdmin.noarch 0:4.4.15.10-4.el7          
Complete!
最初に確認したパッケージのリストを参考に PHP 7.4 のリポジトリ remi-php74 から必要なパッケージを指定してインストール
# yum -y install --enablerepo=epel,remi,remi-php74 php php-bcmath php-cli php-common php-devel php-fpm php-gd php-json  php-mbstring php-mysqlnd php-opcache php-pdo php-pear php-pecl-apcu php-pecl-imagick php-pecl-mcrypt php-pecl-zip php-php-gettext php-process php-snmp php-tidy php-xml                                                        
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: mirrors.cat.net
 * epel: ftp.iij.ad.jp
 * extras: ty1.mirror.newmediaexpress.com
 * remi: ftp.riken.jp
 * remi-php74: ftp.riken.jp
 * remi-safe: ftp.riken.jp
 * updates: ty1.mirror.newmediaexpress.com
remi                                                                                                                                                                             | 3.0 kB  00:00:00     
remi-php74                                                                                                                                                                       | 3.0 kB  00:00:00     
(1/2): remi-php74/primary_db                                                                                                                                                     | 218 kB  00:00:01     
(2/2): remi/primary_db                                                                                                                                                           | 2.7 MB  00:00:02     
Resolving Dependencies
--> Running transaction check
---> Package php.x86_64 0:7.4.9-1.el7.remi will be installed
--> Processing Dependency: php-sodium(x86-64) = 7.4.9-1.el7.remi for package: php-7.4.9-1.el7.remi.x86_64
---> Package php-bcmath.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-cli.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-common.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-devel.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-fpm.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-gd.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-json.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-mbstring.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-mysqlnd.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-opcache.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-pdo.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-pear.noarch 1:1.10.12-1.el7.remi will be installed
--> Processing Dependency: php-composer(fedora/autoloader) for package: 1:php-pear-1.10.12-1.el7.remi.noarch
---> Package php-pecl-apcu.x86_64 0:5.1.18-1.el7.remi.7.4 will be installed
---> Package php-pecl-imagick.x86_64 0:3.4.4-10.el7.remi.7.4 will be installed
---> Package php-pecl-mcrypt.x86_64 0:1.0.3-1.el7.remi.7.4 will be installed
---> Package php-pecl-zip.x86_64 0:1.19.0-1.el7.remi.7.4 will be installed
---> Package php-php-gettext.noarch 0:1.0.12-1.el7.remi will be installed
---> Package php-process.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-snmp.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-tidy.x86_64 0:7.4.9-1.el7.remi will be installed
---> Package php-xml.x86_64 0:7.4.9-1.el7.remi will be installed
--> Running transaction check
---> Package php-fedora-autoloader.noarch 0:1.0.1-2.el7.remi will be installed
---> Package php-sodium.x86_64 0:7.4.9-1.el7.remi will be installed
--> Processing Dependency: libsodium.so.23()(64bit) for package: php-sodium-7.4.9-1.el7.remi.x86_64
--> Running transaction check
---> Package libsodium.x86_64 0:1.0.18-1.el7.remi will be installed
--> Finished Dependency Resolution
Dependencies Resolved
========================================================================================================================================================================================================
 Package                                               Arch                                   Version                                                  Repository                                  Size
========================================================================================================================================================================================================
Installing:
 php                                                   x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                 3.4 M
 php-bcmath                                            x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                  77 k
 php-cli                                               x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                 5.1 M
 php-common                                            x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                 1.2 M
 php-devel                                             x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                 1.2 M
 php-fpm                                               x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                 1.8 M
 php-gd                                                x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                  85 k
 php-json                                              x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                  70 k
 php-mbstring                                          x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                 522 k
 php-mysqlnd                                           x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                 250 k
 php-opcache                                           x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                 327 k
 php-pdo                                               x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                 135 k
 php-pear                                              noarch                                 1:1.10.12-1.el7.remi                                     remi                                       362 k
 php-pecl-apcu                                         x86_64                                 5.1.18-1.el7.remi.7.4                                    remi-php74                                  76 k
 php-pecl-imagick                                      x86_64                                 3.4.4-10.el7.remi.7.4                                    remi-php74                                 176 k
 php-pecl-mcrypt                                       x86_64                                 1.0.3-1.el7.remi.7.4                                     remi-php74                                  30 k
 php-pecl-zip                                          x86_64                                 1.19.0-1.el7.remi.7.4                                    remi-php74                                  60 k
 php-php-gettext                                       noarch                                 1.0.12-1.el7.remi                                        remi                                        21 k
 php-process                                           x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                  89 k
 php-snmp                                              x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                  71 k
 php-tidy                                              x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                  71 k
 php-xml                                               x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                 205 k
Installing for dependencies:
 libsodium                                             x86_64                                 1.0.18-1.el7.remi                                        remi                                       148 k
 php-fedora-autoloader                                 noarch                                 1.0.1-2.el7.remi                                         remi                                       9.1 k
 php-sodium                                            x86_64                                 7.4.9-1.el7.remi                                         remi-php74                                  82 k
Transaction Summary
========================================================================================================================================================================================================
Install  22 Packages (+3 Dependent packages)
Total download size: 15 M
Installed size: 68 M
Downloading packages:
(1/25): libsodium-1.0.18-1.el7.remi.x86_64.rpm                                                                                                                                   | 148 kB  00:00:01     
(2/25): php-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                          | 3.4 MB  00:00:02     
(3/25): php-fedora-autoloader-1.0.1-2.el7.remi.noarch.rpm                                                                                                                        | 9.1 kB  00:00:00     
(4/25): php-bcmath-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                   |  77 kB  00:00:02     
(5/25): php-fpm-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                      | 1.8 MB  00:00:00     
(6/25): php-json-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                     |  70 kB  00:00:00     
(7/25): php-mbstring-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                 | 522 kB  00:00:00     
(8/25): php-mysqlnd-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                  | 250 kB  00:00:00     
(9/25): php-opcache-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                  | 327 kB  00:00:00     
(10/25): php-common-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                  | 1.2 MB  00:00:03     
(11/25): php-pdo-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                     | 135 kB  00:00:00     
(12/25): php-pecl-apcu-5.1.18-1.el7.remi.7.4.x86_64.rpm                                                                                                                          |  76 kB  00:00:00     
(13/25): php-pecl-imagick-3.4.4-10.el7.remi.7.4.x86_64.rpm                                                                                                                       | 176 kB  00:00:00     
(14/25): php-pecl-mcrypt-1.0.3-1.el7.remi.7.4.x86_64.rpm                                                                                                                         |  30 kB  00:00:00     
(15/25): php-cli-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                     | 5.1 MB  00:00:04     
(16/25): php-pecl-zip-1.19.0-1.el7.remi.7.4.x86_64.rpm                                                                                                                           |  60 kB  00:00:00     
(17/25): php-gd-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                      |  85 kB  00:00:02     
(18/25): php-devel-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                   | 1.2 MB  00:00:03     
(19/25): php-php-gettext-1.0.12-1.el7.remi.noarch.rpm                                                                                                                            |  21 kB  00:00:00     
(20/25): php-snmp-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                    |  71 kB  00:00:00     
(21/25): php-xml-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                     | 205 kB  00:00:00     
(22/25): php-pear-1.10.12-1.el7.remi.noarch.rpm                                                                                                                                  | 362 kB  00:00:01     
(23/25): php-tidy-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                    |  71 kB  00:00:00     
(24/25): php-process-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                 |  89 kB  00:00:01     
(25/25): php-sodium-7.4.9-1.el7.remi.x86_64.rpm                                                                                                                                  |  82 kB  00:00:00     
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                                                   2.5 MB/s |  15 MB  00:00:06     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : php-common-7.4.9-1.el7.remi.x86_64                                                                                                                                                  1/25 
  Installing : php-json-7.4.9-1.el7.remi.x86_64                                                                                                                                                    2/25 
  Installing : php-cli-7.4.9-1.el7.remi.x86_64                                                                                                                                                     3/25 
  Installing : php-fedora-autoloader-1.0.1-2.el7.remi.noarch                                                                                                                                       4/25 
  Installing : php-mbstring-7.4.9-1.el7.remi.x86_64                                                                                                                                                5/25 
  Installing : php-process-7.4.9-1.el7.remi.x86_64                                                                                                                                                 6/25 
  Installing : php-xml-7.4.9-1.el7.remi.x86_64                                                                                                                                                     7/25 
  Installing : php-pdo-7.4.9-1.el7.remi.x86_64                                                                                                                                                     8/25 
  Installing : libsodium-1.0.18-1.el7.remi.x86_64                                                                                                                                                  9/25 
  Installing : php-sodium-7.4.9-1.el7.remi.x86_64                                                                                                                                                 10/25 
  Installing : php-7.4.9-1.el7.remi.x86_64                                                                                                                                                        11/25 
  Installing : php-mysqlnd-7.4.9-1.el7.remi.x86_64                                                                                                                                                12/25 
  Installing : 1:php-pear-1.10.12-1.el7.remi.noarch                                                                                                                                               13/25 
  Installing : php-php-gettext-1.0.12-1.el7.remi.noarch                                                                                                                                           14/25 
  Installing : php-devel-7.4.9-1.el7.remi.x86_64                                                                                                                                                  15/25 
  Installing : php-gd-7.4.9-1.el7.remi.x86_64                                                                                                                                                     16/25 
  Installing : php-fpm-7.4.9-1.el7.remi.x86_64                                                                                                                                                    17/25 
  Installing : php-opcache-7.4.9-1.el7.remi.x86_64                                                                                                                                                18/25 
  Installing : php-pecl-imagick-3.4.4-10.el7.remi.7.4.x86_64                                                                                                                                      19/25 
  Installing : php-pecl-zip-1.19.0-1.el7.remi.7.4.x86_64                                                                                                                                          20/25 
  Installing : php-snmp-7.4.9-1.el7.remi.x86_64                                                                                                                                                   21/25 
  Installing : php-pecl-apcu-5.1.18-1.el7.remi.7.4.x86_64                                                                                                                                         22/25 
  Installing : php-bcmath-7.4.9-1.el7.remi.x86_64                                                                                                                                                 23/25 
  Installing : php-pecl-mcrypt-1.0.3-1.el7.remi.7.4.x86_64                                                                                                                                        24/25 
  Installing : php-tidy-7.4.9-1.el7.remi.x86_64                                                                                                                                                   25/25 
  Verifying  : php-cli-7.4.9-1.el7.remi.x86_64                                                                                                                                                     1/25 
  Verifying  : 1:php-pear-1.10.12-1.el7.remi.noarch                                                                                                                                                2/25 
  Verifying  : libsodium-1.0.18-1.el7.remi.x86_64                                                                                                                                                  3/25 
  Verifying  : php-gd-7.4.9-1.el7.remi.x86_64                                                                                                                                                      4/25 
  Verifying  : php-fedora-autoloader-1.0.1-2.el7.remi.noarch                                                                                                                                       5/25 
  Verifying  : php-mbstring-7.4.9-1.el7.remi.x86_64                                                                                                                                                6/25 
  Verifying  : php-fpm-7.4.9-1.el7.remi.x86_64                                                                                                                                                     7/25 
  Verifying  : php-process-7.4.9-1.el7.remi.x86_64                                                                                                                                                 8/25 
  Verifying  : php-json-7.4.9-1.el7.remi.x86_64                                                                                                                                                    9/25 
  Verifying  : php-opcache-7.4.9-1.el7.remi.x86_64                                                                                                                                                10/25 
  Verifying  : php-pecl-imagick-3.4.4-10.el7.remi.7.4.x86_64                                                                                                                                      11/25 
  Verifying  : php-xml-7.4.9-1.el7.remi.x86_64                                                                                                                                                    12/25 
  Verifying  : php-pecl-zip-1.19.0-1.el7.remi.7.4.x86_64                                                                                                                                          13/25 
  Verifying  : php-snmp-7.4.9-1.el7.remi.x86_64                                                                                                                                                   14/25 
  Verifying  : php-pecl-apcu-5.1.18-1.el7.remi.7.4.x86_64                                                                                                                                         15/25 
  Verifying  : php-php-gettext-1.0.12-1.el7.remi.noarch                                                                                                                                           16/25 
  Verifying  : php-7.4.9-1.el7.remi.x86_64                                                                                                                                                        17/25 
  Verifying  : php-bcmath-7.4.9-1.el7.remi.x86_64                                                                                                                                                 18/25 
  Verifying  : php-devel-7.4.9-1.el7.remi.x86_64                                                                                                                                                  19/25 
  Verifying  : php-pdo-7.4.9-1.el7.remi.x86_64                                                                                                                                                    20/25 
  Verifying  : php-pecl-mcrypt-1.0.3-1.el7.remi.7.4.x86_64                                                                                                                                        21/25 
  Verifying  : php-common-7.4.9-1.el7.remi.x86_64                                                                                                                                                 22/25 
  Verifying  : php-mysqlnd-7.4.9-1.el7.remi.x86_64                                                                                                                                                23/25 
  Verifying  : php-tidy-7.4.9-1.el7.remi.x86_64                                                                                                                                                   24/25 
  Verifying  : php-sodium-7.4.9-1.el7.remi.x86_64                                                                                                                                                 25/25 
Installed:
  php.x86_64 0:7.4.9-1.el7.remi                   php-bcmath.x86_64 0:7.4.9-1.el7.remi             php-cli.x86_64 0:7.4.9-1.el7.remi                   php-common.x86_64 0:7.4.9-1.el7.remi             
  php-devel.x86_64 0:7.4.9-1.el7.remi             php-fpm.x86_64 0:7.4.9-1.el7.remi                php-gd.x86_64 0:7.4.9-1.el7.remi                    php-json.x86_64 0:7.4.9-1.el7.remi               
  php-mbstring.x86_64 0:7.4.9-1.el7.remi          php-mysqlnd.x86_64 0:7.4.9-1.el7.remi            php-opcache.x86_64 0:7.4.9-1.el7.remi               php-pdo.x86_64 0:7.4.9-1.el7.remi                
  php-pear.noarch 1:1.10.12-1.el7.remi            php-pecl-apcu.x86_64 0:5.1.18-1.el7.remi.7.4     php-pecl-imagick.x86_64 0:3.4.4-10.el7.remi.7.4     php-pecl-mcrypt.x86_64 0:1.0.3-1.el7.remi.7.4    
  php-pecl-zip.x86_64 0:1.19.0-1.el7.remi.7.4     php-php-gettext.noarch 0:1.0.12-1.el7.remi       php-process.x86_64 0:7.4.9-1.el7.remi               php-snmp.x86_64 0:7.4.9-1.el7.remi               
  php-tidy.x86_64 0:7.4.9-1.el7.remi              php-xml.x86_64 0:7.4.9-1.el7.remi               
Dependency Installed:
  libsodium.x86_64 0:1.0.18-1.el7.remi                          php-fedora-autoloader.noarch 0:1.0.1-2.el7.remi                          php-sodium.x86_64 0:7.4.9-1.el7.remi                         
Complete!
バージョンを確認
# php -v
PHP 7.4.9 (cli) (built: Aug  4 2020 08:28:13) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
    with Zend OPcache v7.4.9, Copyright (c), by Zend Technologies
ね、簡単でしょ?
あとは Web サーバを再起動して WordPress の管理画面に入りサイトヘルスを再表示。

無事に注意書きが消えました。プラグインとかテーマとかに関する注意については、必要なものは停止した状態で使いたい時に有効化する使い方しているので、意図しないものを削除するだけに留めておきます。
以上で更新自体は完了。とりあえず 7.3 の環境で使っていたモジュールはそのままインストールできたので、不具合とかはない……はず。まぁ、何かあったらそのとき対応すればいいかなと。


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