Integration of client into PHP, client_example.php

In FRED homepage, under Documentation, Fred_client readme (README_EN.txt), it says: ---------- Chapter 6. Integration of client into the PHP code CAUTION ! The PHP support extension is in a development and testing phase in this version of the client. The final solution may differ. The client also contains a sample PHP script, which demonstrates how to integrate the client into a PHP solution: doc/client_example.php. It is necessary to correctly set the route to client: $exec_path (unless the client was installed using the standard procedure). The $php_module_name variable sets redirection to file and $command_options enable addition of other parameters when necessary. ---------- But i cannot find the file client_example.php on my server ! Does anyone know why ? Can someone send me this file ? This email and its attachments may be confidential and are intended solely for the use of the individual to whom it is addressed. If you are not the intended recipient or authorized to receive information for the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. If the email contains proposals, they are valid for 30 days following the date of email transmission. Finally, the recipient should check this email and any attachment for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by email.