Modify a PHP file

I run a Traffic Exchanger Site Programmed in PHP , It is Auto Traffic Exchanger and I need to convert it to manual Traffic Exchanger and I know that by modifing only a single file it can be converted to manual traffic exchanger , I will only provide you that file after accepting your bid , I will not provide you the entire script and you need to modify a single file only to convert it to manual traffic exchanger . The difference between auto Traffic Exchanger and Manual Traffic Exchanger is that in Auto Traffic Exchanger , it automatically rotates the sites after defined period of time and in manual traffic exchanger it rotates the sites when someone click on the link after the defined period . ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Any