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Install PHP 7.1 on Ubuntu 24.04

This version of PHP is actively supported.

Good news! PHP 7.1 is being actively supported through 20 Sep 2024. After that point, it's advisable to upgrade to the latest version, since the PHP team will only offer security-related support until 20 Sep 2024, at which point PHP 7.1 will be considered "end-of-life".

Installing PHP 7.1 on Ubuntu 24.04

Prerequisites

Ubuntu 24.04 system with sudo privileges
Terminal access
Internet connection

Installation

Add the PHP 7.1 PPA repository:
```
sudo add-apt-repository ppa:ondrej/php
```
Update the package list:
```
sudo apt update
```
Install PHP 7.1:
```
sudo apt install php7.1
```

Install common PHP extensions:

sudo apt install php7.1-cli php7.1-common php7.1-json php7.1-opcache php7.1-mysql php7.1-mbstring php7.1-mcrypt php7.1-zip

Verification

Check the PHP version:
```
php -v
```
You should see output indicating PHP 7.1.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.