# phpquery > PHP extension manager for Debian-based OSes. > More information: . - List available PHP versions: `sudo phpquery -V` - List available SAPIs for PHP 7.3: `sudo phpquery -v {{7.3}} -S` - List enabled extensions for PHP 7.3 with the cli SAPI: `sudo phpquery -v {{7.3}} -s {{cli}} -M` - Check if the JSON extension is enabled for PHP 7.3 with the apache2 SAPI: `sudo phpquery -v {{7.3}} -s {{apache2}} -m {{json}}`