Why do I get "Uncaught Error: Class 'COM' not found" error in PHP

The following error might occur at runtime when using EasyXLS Excel library for PHP:

Fatal error: Uncaught Error: Class 'COM' not found

at line:

$workbook = new COM("EasyXLS.ExcelDocument");

The error is raised because PHP server does not allow creating COM objects from .NET.

Reason: COM and .NET extension not enabled

In order to enable COM and .NET extension in PHP, add the following lines in php.ini:

[COM_DOT_NET]
extension=php_com_dotnet.dll

php.ini file can be found at the location where PHP was installed.

Restart IIS Server.

Contact us for any other reasons

If none of the above, contact us at support@easyxls.com with details about your application configuration and the full error message.