Screenshot with behat selenium

screenshot_behat.php

  <?php
  
  /**
   * This works for Selenium and other real browsers that support screenshots.
   *
   * @Then /^show me an screenshot$/
   */
  public function showMeAnScreenshot() {

    $image_data = $this->getSession()->getDriver()->getScreenshot();
    $file_and_path = '/tmp/behat_screenshot.png';
    file_put_contents($file_and_path, $image_data);
  }