ubuntu 18.04, php 7.4 설치

sudo apt-get install update-manager-core

Then open the update-manager configuration file and make sure the Prompt line is set to lts

sudo nano /etc/update-manager/release-upgrades

Confirm that the Prompt is equal lts

# Default behavior for the release upgrader.

[DEFAULT]
# Default prompting behavior, valid options:
#
# never - Never check for a new release.
# normal - Check to see if a new release is available. If more than one new
# release is found, the release upgrader will attempt to upgrade to
# the release that immediately succeeds the currently-running
# release.
# lts - Check to see if a new LTS release is available. The upgrader
# will attempt to upgrade to the first LTS release available after
# the currently-running one. Note that this option should not be
# used if the currently-running release is not itself an LTS
# release, since in that case the upgrader won't be able to
# determine if a newer release is available.
Prompt=lts
If not, change it to lts and save the file.

Step 3: Perform Ubuntu 18.04 LTS Upgrade
Now that your system is ready, run the commands below to begin Ubuntu upgrade to the latest development release..



sudo do-release-upgrade -d

Follow the on-screen instructions…. y = yes and N= No. When prompted whether you wish to upgrade type y for yes.

Do you want to start the upgrade?

1 installed package is no longer supported by Canonical. You can
still get support from the community.

2 packages are going to be removed. 64 new packages are going to be
installed. 394 packages are going to be upgraded.

You have to download a total of 234 M. This download will take about
1 minute with your connection.

Installing the upgrade can take several hours. Once the download has
finished, the process cannot be canceled.

Continue [yN] Details [d] y
Wait for all the newer packages to be downloaded… this may take a while depending on your internet connection speed. After all packages are downloaded, your system will begin upgrading immediately….

Once new packages have finished installing, you’ll be asked whether to remove obsolete packages. Type y here. If you have a system that you have customized, you may wish to enter d to view the list… just in case you may need to reinstall..

Remove obsolete packages?

53 packages are going to be removed.

Continue [yN] Details [d]y
Wait for the process to complete, the reboot to finish.. you’ll be notify to reboot.

Restart required

To finish the upgrade, a restart is required.
If you select 'y' the system will be restarted.

Continue [yN] y

https://computingforgeeks.com/how-to-install-mariadb-on-ubuntu/
Step 1
sudo apt-get update
sudo apt -y install software-properties-common
sudo add-apt-repository ppa:ondrej/php
sudo apt-get update

Step 2: Install PHP 7.4 on Ubuntu 16.04
Install PHP 7.4 on Ubuntu 16.04 using the command:

sudo apt -y install php7.4

다시 php 7.2 로
sudo add-apt-repository ppa:ondrej/php

sudo apt-get update



sudo apt-get install php7.2

sudo apt-get install php7.2-cli php7.2-common php7.2-json php7.2-opcache php7.2-mysql php7.2-mbstring php7.2-zip php7.2-fpm php7.2-intl php7.2-simplexml php7.2-gd


sudo a2dismod php7.4

sudo a2enmod php7.2

sudo service apache2 restart

마리아디비 10.4 on ubuntu 18.04
https://computingforgeeks.com/how-to-install-mariadb-on-ubuntu/