help coding a file rotator

[cabaz777]

hi all

i need to code a php file to be called by a cron job to do rotate 2 files in the server.

it should be something like this:
say i have the 2 files called aaa.php and bbb.php

so the script should do this:

copy (clone) aaa.php to ccc.php (at this moment we have 3 files)
rename bbb.php to aaa.php (bbb overwrites aaa)
rename ccc.php to bbb.php (it finished rotating the 2 files)

in the next cron it will do the same so bbb will become aaa and so on

i dont know if there is a easier way to do that, i just thought that this is a logical way

can someone help me coding this? I even dont know how to start
:bemused: :bemused: :bemused:

thanks in advance

[dalecosp]

At its most basic:

system("cp filea /tmp/fileb");
system("cp fileb filea");
system("mv /tmp/fileb ./");