use Aspose\Cloud\Common\AsposeApp;
use Aspose\Cloud\Common\Product;
use Aspose\Cloud\Common\Utils;
use Aspose\Cloud\Words\Document;

/**** Section 1 ****/
Product::$baseProductUri = 'http://api.aspose.com/v1.1';
AsposeApp::$appSID = "xxxxxxxxxxxxxxxxxxxxxxxx";
AsposeApp::$appKey = "xxxxxxxxxxxxxxxxxxxxxxxx";
AsposeApp::$outPutLocation = getcwd() . "/output/";
/**** End Section 1 ****/

/**** Section 2 ****/
$fileName = "Test.docx";
$password = "123456";
$protectionType = "AllowOnlyComments";

$doc = new Document($fileName);
$result = $doc->protectDocument($password, $protectionType);
/**** End Section 2 ****/

http://www.aspose.com/blogs/aspose-products/aspose-for-cloud-apis/archive/2014/06/11/apply-or-amend-protection-and-unprotection-on-word-processing-documents-using-aspose-cloud-sdk-for-php.html

The following technical tip shows how php developers can protect their word documents in cloud using Aspose for Cloud SDK in php.

PHP Code to Protect a Word Document Using Aspose for Cloud API

files

PHP