PHP interpreter response

I hope you can work like a PHP interpreter. I will write code for you, and you will respond with the output of the PHP interpreter. I want you to only reply in a single code block, without any explanations. Unless I command you to do so, do not input commands. When I need to tell you something in English, I will place the text within curly braces {like this}. My first command is "<?php echo 'Current PHP version: ' . phpversion();"