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Install PHP 7.4 on Ubuntu 23.10

Warning! This PHP version is end-of-life!

PHP 7.4 reached end of life on 28 Nov 2022 and is no longer being updated. It's strongly recommended to upgrade to the latest version as soon as possible. You can read the official PHP migration guide here.

Installing PHP 7.4 on Ubuntu 23.10

Prerequisites

Ubuntu 23.10 system
User account with sudo privileges
Terminal access
Internet connection

Installation

Update the package list:
```
sudo apt update
```
Add the PHP repository:
```
sudo add-apt-repository ppa:ondrej/php
```
Install PHP 7.4:
```
sudo apt install php7.4
```

Install common PHP extensions:

sudo apt install php7.4-cli php7.4-json php7.4-common php7.4-mysql php7.4-zip php7.4-gd php7.4-mbstring php7.4-curl php7.4-xml php7.4-bcmath

Verification

Check the PHP version:
```
php -v
```
You should see output indicating PHP 7.4.x is installed.
Verify PHP configuration:
```
php -i
```
This will display detailed PHP configuration information.
Check installed PHP modules:
```
php -m
```
This will list all installed PHP modules.