A bug or a cache problem?!
 

HI,
I installed a PHP (heavy-duty) application on an Apache server and under windows 2003 server, and it works well as when it was installed on a Unix shared server before.
the problem manifest in just one of two cases: to heavy uploading files, or send a large quantity of SMS broadcast (it is an application dedicated to send SMS), what happens is that the script does not stop and continue repeating execution until the end of time set by max_time_execution or until I stop it manually, for example when I send 10000 messages, I found in the sent messages reports 3 or 4 or more instances of this operation.
knowing that this application and with the same configuration worked well on x-servers, in addition to the execution time and memory are well configured.
is the cache which is the source of the problem or not, and if so what to do to solve such a problem.