domaintrader

i have herd to use a http header request or the ip's are static store them in a DB or text file and use an if query to make sure that ip matches for the script can some one help me please

question i have a sever with 7 ip addresess, i have 7 domains each assigned a different ip. i have a php script running on each domain name. what i need is to force those scripts to run off a certain ip address these small php scripts submit small bits of info to a bunch of sites that record submitted info and recored the submitters ip address, thats why i need each set of scripts to be forced to use a certain ip so i can submit multiable times to the same site. if anyone know how to make this happen i would be willing to pay for the working info. or hire you to do the work.