The steps to install PHP 8 on Ubuntu are: 1. Update the package list; 2. Install PHP 8 and basic components; 3. Check the version to confirm that the installation is successful; 4. Install additional modules as needed. Windows users can download and decompress the ZIP package, then modify the configuration file, enable extensions, and add paths to environment variables. macOS users recommend using Homebrew to install, and perform steps such as adding tap, installing PHP 8, setting the default version and verifying the version. Although the installation methods are different under different systems, the process is clear, so you can choose the right method according to the purpose.
Installing PHP 8 is actually not difficult, the key is to choose the right method and version. Different operating systems and usage scenarios (such as local development and production environment) will affect your installation method. The following is based on several common situations, how to successfully install PHP 8.

How to Install PHP 8 on Ubuntu
If you are using Ubuntu system, the most convenient way is to install it through the apt
package manager. PHP 8 is already included in the default source for Ubuntu 20.04 and above.
The steps are as follows:

-
Update the package list:
sudo apt update
Install PHP 8:
sudo apt install php php-cli
Check whether the installation is successful:
php -v
If additional modules are needed, such as MySQL support or GD image processing library, you can install them as needed:
sudo apt install php-mysql php-gd
This method is suitable for fast-building environments, but if you want to control the version more accurately, or use some extensions that are not in the default source, you can consider compiling and installing it from the source code.
How to install PHP 8 on Windows
Windows users usually have two options: manually configure or use an integrated environment (such as XAMPP, WAMP).
If you want to have a deeper understanding of the operating mechanism, manual installation is also a good choice:
- Go to the PHP official website to download the Windows ZIP package (it is recommended to choose the Thread Safe version if you plan to use it with Apache).
- Unzip to a directory, such as
C:\php
. - Modify
php.ini-development
file name tophp.ini
and enable the extension as needed, such as uncomment this line to enable the mysqli extension:extension=mysqli
- Add
C:\php
to the system environment variable Path. - Enter
php -v
on the command line to verify that it is effective.
Note: If you are using Nginx or Apache, you may also need to configure the corresponding server module loading path.
How to install PHP 8 on macOS
macOS can use Homebrew to simplify the installation process:
If Homebrew has not been installed yet, execute this command to install:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
Add PHP tap:
brew tap shivammathur/php
Install PHP 8:
brew install shivammathur/php/php@8.0
Set the default PHP version:
brew link --force php@8.0
Verify the version:
php -v
The advantage of Homebrew installation is that it can flexibly switch multiple PHP versions, which is suitable for students who are doing multi-project development.
Basically that's it. The installation methods are slightly different under different systems, but the overall process is relatively clear. The key is to choose the right method according to your system and purpose, and then remember to install the commonly used extensions, and it will basically be used.
The above is the detailed content of PHP 8 Installation Guide. For more information, please follow other related articles on the PHP Chinese website!

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