src/FileReader.php
public function read($filePath)
    {
        if ('php://stdin' === $filePath) {
            if (null === $this->stdinContent) {
                $this->stdinContent = $this->readRaw($filePath);
            }

            return $this->stdinContent;
        }

        return $this->readRaw($filePath);
    }
public function read($filePath)
    {
        if ('php://stdin' === $filePath) {
            if (null === $this->stdinContent) {
                $this->stdinContent = $this->readRaw($filePath);
            }

            return $this->stdinContent;
        }

        return $this->readRaw($filePath);
    }
@param string $filePath

@return string