screen_capture_index_phantomjs

<?php

$path = "";

if( isset($_GET['url']) ){

    $url = $_GET['url'];

    $timestamp = round(microtime(true) * 1000);
    $fn = $timestamp;
    $path = $fn.".png";

    $output  = exec('phantomjs capture.js '.$url.' '.$path);
}

?>
<form>
    <input type="url" name="url" placeholder="URL to capture">
    <input type="submit">
</form>

<br>
<img src="<?= $path ?>" alt="">