Installing PHP is not complicated for beginners. The key is to clarify the system environment and version requirements and follow the steps. First, you need to confirm the operating system (Windows, macOS or Linux), and choose a stable version such as PHP 8.1 or 8.2; secondly, you can install it through manual installation, using an integrated environment (such as XAMPP, WAMP) or package management tools (such as apt-get, brew); then configure environment variables to ensure that the command line can recognize PHP instructions, and run it through the phpinfo() page test; finally pay attention to common problems, such as Apache port occupation, php.ini file path errors, and extension not enabled, etc., and check one by one to complete the installation smoothly.
Installing PHP is actually not that difficult, especially for beginners who are just getting started, as long as the steps are clear and the operation is very direct. The key is to understand your operating system, PHP version and operating environment requirements, and then do it step by step.

Choose the right version of PHP
First of all, don’t go to the official website to download the latest PHP as soon as you come up. First, confirm which system you are using: Windows, macOS or Linux. The installation packages and methods of different systems are different.
- Windows : You can download the ZIP package and configure environment variables after decompression.
- macOS/Linux : Generally comes with PHP, but the version may be older. It is recommended to upgrade with Homebrew (macOS) or apt-get (Ubuntu).
In addition, it is recommended that novices choose stable versions, such as PHP 8.1 or 8.2, and do not follow the latest version unless you have special needs. Some extensions and frameworks may not be fully compatible with the latest version.

Several ways to install PHP
There are three main ways to install PHP: manual installation, use an integrated environment, and install through package management tools.
-
Manual installation
Especially for Windows users, you can download the Thread Safe or Non-Thread Safe version from the official PHP website. Generally used with Apache or Nginx. After decompression, remember to modify thephp.ini
file and enable common extensions, such asphp_curl
,php_gd
, andphp_mbstring
. Use an integrated environment
Tools like XAMPP, WAMP, MAMP, etc., install PHP Apache MySQL with one click, which is especially suitable for novices to get started quickly. The disadvantage is that the configuration is not flexible enough, but the early learning is completely sufficient.Installation through the package manager
If you are using Linux or macOS, it is recommended to useapt-get install php
orbrew install php
. This method is fast to install and version updates are also convenient, which is suitable for advanced learning.
Configure PHP environment variables and test runs
After installing PHP, remember to configure environment variables so that you can directly run php -v
on the command line to view the version.
- On Windows : Add the PHP decompression directory to the system PATH.
- On macOS/Linux : It is usually automatically configured. If not, you can use
which php
to check the path.
Then write a simple phpinfo()
page to test it:
<?php phpinfo(); ?>
Save it as info.php
, place it in the server root directory, access it with a browser, and you can see the configuration information of PHP, which means it is installed.
Frequently Asked Questions and Notes
Novice often encounters several minor problems when installing PHP. Here are a few key points:
- Apache startup failed : Port 80 may be occupied. Check if other services (such as Skype) occupy the port.
- php.ini not found : The default path may not be in the directory you unzipped. You can copy
php.ini-development
orphp.ini-production
file and rename it tophp.ini
. - Extension does not take effect : Make sure
extension_dir
points to the correct path, and some extensions are preceded by semicolons;
remove.
Basically all that is it. Installing PHP is not complicated but it is easy to ignore details. Just take it step by step and don't rush to skip the configuration steps, most problems can be solved.
The above is the detailed content of PHP Installation for Beginners. For more information, please follow other related articles on the PHP Chinese website!

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