What could be causing the issue with generating docx files on Linux using PHP?

The issue with generating docx files on Linux using PHP could be due to missing dependencies or permissions. To solve this, you can try installing the required packages and ensuring that the PHP script has the necessary permissions to write to the file system.

<?php
// Ensure that the required packages are installed
exec('sudo apt-get install libreoffice');

// Set the correct permissions for the PHP script to write to the file system
exec('sudo chown www-data:www-data /path/to/output_directory');

// Generate the docx file
$doc = new COM("word.application") or die("Cannot start Word");
$doc->Visible = 0;
$doc->Documents->Add();
$doc->Selection->TypeText("Hello, this is a test document.");
$doc->Documents[1]->SaveAs("/path/to/output_directory/test.docx");
$doc->Quit();
?>