PHP - How to parse data after loading js scripts?

Question

PHP

Good day to all! There was a problem with parsing this site: https://cloud.sigma.ru/login The fact is that the data is loaded here in 2 stages. More precisely, first some scripts, then the second. I tried almost everything: regular curl (I even wrote headers manually - perhaps incorrectly), simple_html_dom, phpQuery. As a result, I came to the implementation: Selenium WebDriver + PhantomJS , BUT, I managed to load only 1 stage of loading, but it's better than using curl and others. I think that you need to somehow insert into PHP a call to these js scripts that are being loaded. But I don't know how to do it because I'm new to it. I will be glad for any help.
Code that does 1 step:

<?php
//selenium php WebDriver
require_once('vendor/autoload.php');
   use Facebook\WebDriver\Remote\RemoteWebDriver;
   use Facebook\WebDriver\WebDriverBy;
   use Facebook\WebDriver\Remote\DesiredCapabilities;
   use Facebook\WebDriver\WebDriverExpectedCondition;

   $web_driver = RemoteWebDriver::create(
   "http://localhost:8910/wd/hub",DesiredCapabilities::firefox()
       //array("platform"=>"LINUX", "browserName" => "firefox", "version" => "71"), 920000
   );
   $web_driver->get("https://cloud.sigma.ru/login");
//sleep(30); 
$html = $web_driver->getPageSource();

echo $html;

Answer 1

If the data is loaded by scripts, then you will not catch it through PHP. Parse with JS.