What is the issue with using file_get_contents to read a page and execute JavaScript?

The issue with using file_get_contents to read a page and execute JavaScript is that file_get_contents only retrieves the raw HTML content of the page and does not execute any JavaScript code. To solve this issue, you can use a headless browser like Puppeteer to render the page with JavaScript execution capabilities. 

<?php
require 'vendor/autoload.php';

use Nesk\Puphpeteer\Puppeteer;

$puppeteer = new Puppeteer();
$browser = $puppeteer->launch();
$page = $browser->newPage();
$page->goto('https://example.com');
$content = $page->content();
echo $content;

$browser->close();

Keywords

file_get_contents JavaScript AJAX DOM cross-origin

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