The steps to run PHP applications using IIS on a Windows server are as follows: 1. Install the PHP Manager extension to set up the PHP version and management configuration; 2. Configure FastCGI mode to improve performance and adjust the timeout parameters; 3. Set IIS_IUSRS user permissions to ensure file access and database connections are normal; 4. Pay attention to path case issues to avoid framework compatibility errors. Through the above steps, the stable operation of PHP applications on IIS can be achieved.

If you plan to run PHP applications on a Windows server, IIS (Internet Information Services) is a stable and common choice. While Apache is more commonly used in PHP environments, IIS has unique advantages in integrating Windows capabilities, permission management, and enterprise-level deployments. As long as the configuration is properly, PHP applications will work perfectly on IIS.

Install and configure PHP Manager

The easiest way to run PHP in IIS is to use the extension module PHP Manager . It helps you quickly set up multiple PHP versions, manage php.ini settings, and enable common features.

• First make sure your server has IIS and .NET Framework installed.
• Go to Microsoft's official website to download and install the PHP Manager extension.
• After the installation is complete, you will see the "PHP Manager" icon in IIS Manager.
• Use it to register the local PHP executable file path, or let it help you download and install it from the network.

This tool greatly simplifies the configuration process, especially when you need to switch between different versions of PHP or debug whether certain extensions are enabled.

Properly configure FastCGI mode

IIS recommends running PHP in FastCGI mode instead of traditional CGI mode. FastCGI has better performance, supports concurrent requests, and has lower resource utilization.

To configure FastCGI:

• Open IIS Manager → Select Server Node → Double-click Handler Mapping.
• Make sure that the map of the .php file has been added to php-cgi.exe .
• Check if the parameters are correct in "FastCGI Settings", especially PHP_FCGI_MAX_REQUESTS and活動(dòng)請(qǐng)求限制.

One easy to ignore is: if you encounter timeout or memory problems, you can appropriately increase the values of Activity Timeout and Request Timeout to avoid the application being interrupted due to excessive waiting time.

Permissions and path issues cannot be ignored

Many PHP applications make errors on IIS, which is often not a problem with the code itself, but an improper permission setting. By default, IIS uses the IIS_IUSRS user group, and this user's access rights may be limited.

The recommended operations are as follows:

• Give IIS_IUSRS read and write permissions to the website root directory (if it is an uploaded application, it also requires write permissions).
• If using a database or other external service, remember to confirm that these connections have sufficient permissions.
• Note the path case problem. Although Windows is case-insensitive, some PHP frameworks may make errors as a result.

For example, if WordPress fails to install plug-in, it is often caused by IIS users not having write permissions.

Basically that's it. Configure PHP Manager, enable FastCGI, pay attention to permissions and paths, and the rest is to adjust the php.ini parameters and URL rewrite rules according to the specific project. It seems not complicated, but every link is prone to pitfalls, especially in production environments, you should be more careful in testing.

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