The availability of PHP extensions in the PHP Selector Extensions dashboard depends on several factors:

1. Compatibility with PHP Version:

   • Each PHP extension is designed to work with specific PHP versions. If an extension is not available in the PHP Selector Extensions dashboard, it may not be compatible with the version of PHP you have selected.

2. Installation and Configuration:

   • The extensions listed in the PHP Selector Extensions dashboard are typically those that are supported and provided by your hosting provider or server management software. If a particular extension is not included, it may not be installed or configured on your server.

3. Custom Configuration:

   • It's possible that your hosting provider or server administrator has chosen to exclude certain extensions for specific reasons. They might have their own custom configuration that limits the available extensions.

4. License Restrictions:

   • Some extensions may have licensing restrictions that prevent them from being distributed or included by default. This could be a reason why certain extensions are not available.

5. Security and Stability:

   • Hosting providers and server administrators may choose to include only extensions that have been thoroughly tested for stability and security. This can help ensure the overall reliability of the server environment.

6. Alternate Installation Methods:

   • If you require a specific extension that is not available in the PHP Selector Extensions dashboard, you may be able to install it manually using tools like pecl or by compiling it from the source. However, be aware that manual installations require additional care and may not be supported by your hosting provider.

7. Support and Documentation:

   • If you're unsure why a specific extension is not available, consider reaching out to your hosting provider or server administrator. They may be able to provide specific information about the extensions available on your server.

8. Consideration for Alternatives:

   • If a specific extension is not available, consider whether there are alternative extensions or methods that can achieve similar functionality.

Remember, if you're managing a server, be cautious when installing or enabling extensions, and ensure they are compatible with your PHP version and won't introduce security vulnerabilities. Always consult with your hosting provider or server administrator if you have questions or concerns about PHP extensions.