<?php
error_reporting (E_ALL | E_STRICT);
@ini_set ('display_errors', 'on');
require_once '../../../../vendor/autoload.php';

$my_content = $_POST['html_content'];

$phpWord = new PhpOfficePhpWordPhpWord();
$section = $phpWord->addSection();

PhpOfficePhpWordSharedHtml::addHtml($section, $my_content);

header('Content-Type: application/octet-stream');
header('Content-Disposition: attachement;filename="teste.docx"');
$objWriter = PhpOfficePhpWordIOFactory::createWriter($phpWord, 'Word2007');
$objWriter->save('php://output');
?>