src/Parser.php
protected function doParse($content)
    {
        $raw_lines = array_filter($this->makeLines($content), 'strlen');

        if (empty($raw_lines)) {
            return;
        }

        return $this->parseContent($raw_lines);
    }
protected function doParse($content)
    {
        $raw_lines = array_filter($this->makeLines($content), 'strlen');

        if (empty($raw_lines)) {
            return;
        }

        return $this->parseContent($raw_lines);
    }
Opens the .env, parses it then returns the contents

@param string $content The content to parse

@return array The .env contents