public function prepare() { parent::prepare(); if (!getenv('PHPBREW_PHP')) { $this->logger->error("Error: PHPBREW_PHP environment variable is not defined."); $this->logger->error(" This extension command requires you specify a PHP version from your build list."); $this->logger->error(" And it looks like you haven't switched to a version from the builds that were built with PHPBrew."); $this->logger->error("Suggestion: Please install at least one PHP with your prefered version and switch to it."); return false; } return true; }