# Server Requirements The DigiRestro has a few system requirements. You should ensure that your web server has the following minimum PHP version and extensions: * PHP >= 8.1 * Ctype PHP Extension * cURL PHP Extension * DOM PHP Extension * Fileinfo PHP Extension * Filter PHP Extension * Hash PHP Extension * Mbstring PHP Extension * OpenSSL PHP Extension * PCRE PHP Extension * PDO PHP Extension * Session PHP Extension * Tokenizer PHP Extension * XML PHP Extension * [Imagick PHP Extension](https://github.com/Imagick/imagick) * Your hosting must support **symlink** to enable image upload. ``` Imagick PHP Extension is required to generate QR code. ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://digirestro.gitbook.io/digirestro/server-requirements.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.