PHP itself does not come with the ionCube loader module, it must be downloaded from the ionCube website. The ionCube loader is free, but the Encoder is more expensive (starting at $199).
The following will introduce how to install ionCube Loader under Linux.
1. Download ionCube http://www.ioncube.com/loader_download.php. You can find the corresponding version through this link. I use wget to get the Linux64 version from the command line. wget -c http://downloads2.ioncube.com/loader_downloads/ioncube_loaders_lin_x86-64.tar.gz
2. Unzip tar -zxvf ioncube_loaders_lin_x86-64.tar.gz
3. You can find ioncube-loader-helper.php in the unzipped folder, copy it to the directory of the website, for example: cp ioncube-loader-helper.php /var/www/html/
4. Then open ioncube-loader-helper.php in the browser and click the Server System Information link. It will tell you which ionCube-loader module should be used based on your system configuration, and Tells the path to php.ini.
5. Next, copy the relevant modules to /usr/local/ (or other directories), and add a line to php.ini according to the prompts in step 4. For example: zend_extension = /usr/local/ioncube/ioncube_loader_lin_5.3.so
Note: If there is no zend_extension in your php.ini, you can add this line at any position, otherwise, add it before the first zend_extension statement.
6. Save php.ini and restart the server. The command used on our server is: /etc/init.d/httpd restart
In addition, I also saw an article on ZendChina about the comparison between ZendGuard and ionCube tools. ZendGuard is also a tool for encrypting PHP source code. ZendGuard can only be used in an environment configured with ZendOptimizer and cannot run independently. It is said that the ZendOptimizer (PHP optimization engine) used by can increase the source code execution speed by 20~50%. If combined with ZendGuard, the speed can be increased to more than 50%. Our company's website has not yet used PHP encryption and PHP optimization. You must try it if you have the opportunity.
I wonder if PHP’s encryption goes against the concept of open source?