Installing ionCube PHP Loader in Windows and Linux

If you are stuck with the below errors, this may be good tutorial for you.

.....requires the ionCube PHP Loader ioncube_loader_win_5.4.dll to be installed by the website operator. If you are the website operator please use the ionCube Loader Wizard to assist with installation.

In Windows
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Please go to download the IonCube loader from the IonCube website and you unzip the file and click the loader-installer.exe and the window pop-up.
To install in your local computer, please use the below format;
Installation Type: Local machine
Base URL: http://localhost/
Base directory: your_htdocs_folder_full_path (e.g. C:\Bitnami\wampstack\apache2\htdocs, C:\xampp\htdocs)

Then, click the start and once installation process completes, please restart the apache. Also, if you goto php.ini file, the zend_extension="your_ioncube_dll_path" is added to the beginning of the file, which you can move to the right place within the file.

FYI: I would be adding to do same on Linux soon..

Furthermore,

To Enable the ionCube PHP Loader for WHMCS installation.
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1. Please download the Linux package (64 bits or 32 bits) form the IonCube Loader page.
2. Unzip the files and create a ioncube/ in your public_html/ folder and move all those extracted files in it.
3. Create the php.ini file with below content in it.
zend_extension = "/home/your_site_username/public_html/ioncube/ioncube_loader_lin_5.4.so"

4. Then copy the above php.ini file across in your WHMCS main folder (where you are going to install), its install/, admin/ folders.

Then, try refreshing the page. It should be working.