$url = $_POST["url"];
$screen_shot_json_data = file_get_contents("https://www.googleapis.com/pagespeedonline/v5/runPagespeed?url=$url&screenshot=true");
$screen_shot_result = json_decode($screen_shot_json_data, true);
$screen_shot = $screen_shot_result['lighthouseResult']['audits']['final-screenshot']['details']['data'];
$screen_shot_image = "<img src='" . $screen_shot . "' class='img-responsive img-thumbnail'/>";

echo $screen_shot_image;