What is the difference between running a PHP program on an Apache server versus an IIS server?

Running a PHP program on an Apache server versus an IIS server can result in differences in configuration settings, performance, and compatibility with certain PHP functions or extensions. To ensure smooth operation, it is important to adjust the PHP configuration settings accordingly for each server type. 

// Example of adjusting PHP configuration settings for an Apache server
// Add the following lines to your .htaccess file

<IfModule mod_php7.c>
  php_value setting_name value
</IfModule>
```

```php
// Example of adjusting PHP configuration settings for an IIS server
// Add the following lines to your web.config file

<system.webServer>
  <handlers>
    <add name="PHP_via_FastCGI" path=".php" verb="GET,HEAD,POST" modules="FastCgiModule" scriptProcessor="C:\path\to\php-cgi.exe" resourceType="Either" requireAccess="Script" />
  </handlers>
</system.webServer>

Keywords

PHP Apache IIS server differences

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