What should you pay attention to when installing php?

PHP, as an open source scripting language, is widely used in the field of Web development. Before developing PHP, you need to complete the installation of PHP first. So, what do developers need to pay attention to when installing PHP? This article will introduce this issue from the following aspects.

1. PHP version selection

It is very important to choose the appropriate PHP version. Of course, this depends on the needs of the developer and the needs of the project. If you need to use some newer features, you need to choose a newer PHP version. In addition, PHP has two major versions, namely 5.x and 7.x. Although PHP 7.0 and 7.1 have stopped maintenance, the PHP 7.x series is still widely used, and the extension library related to this version is relatively mature, so choosing PHP 7.x is a relatively good choice.

2. Web server

In PHP, the Web server is essential. Before installing PHP, you need to choose a suitable web server. Common web servers include Apache, Nginx, etc. Different web servers have different usage scenarios, so you need to choose the appropriate web server according to your needs.

3. Operating system

PHP can work in different operating systems, such as Windows, Linux, Unix, etc. Different operating systems also have different requirements for the installation of PHP. For example, under the Windows platform, the configuration of PHP is relatively simple, while under the Linux platform, you need to pay attention to issues such as permissions. Therefore, before installing PHP, you need to understand the characteristics and requirements of the operating system you are using.

4. Installation of extension libraries

When developing PHP, you may need to use different extension libraries, such as mysqli, pdo, etc. Before installing PHP, you need to determine which extension libraries you need to use and install them accordingly. If an old version of PHP has been installed, you need to clear the old version of the extension library first, and then install the new version of the extension library.

5. Configure the php.ini file

The php.ini file is the configuration file of PHP and contains some important configuration information of PHP, such as upload file size limit, time zone, error report, etc. After installing PHP, you need to configure the php.ini file according to the needs of the project to ensure that PHP can work properly.

6. Test whether the PHP installation is successful

After completing all the above steps, you need to conduct a test to ensure that the installation and configuration of PHP have been completed and can work normally. The testing method can be as simple as creating a file containing PHP code and then running it in a web browser to see if the results of the PHP code can be displayed normally.

In summary, the installation of PHP involves many aspects, and developers need to operate carefully to ensure that the installation and configuration of PHP can be completed successfully. Only after completing these tasks can we successfully develop PHP.

The above is the detailed content of What should you pay attention to when installing php?. For more information, please follow other related articles on the PHP Chinese website!