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   Simple Script 2
Bidding Time:
04/04/2005 20:38 - 06/04/2005 20:38
Budget:
Maximum $20
Status:
 Closed


Job Type:
PHP
Description:

This is a re-post! PLEASE DO NOT WASTE MY TIME AGAIN! If you do not understand
what the project is about or do not know exactly how to do it DO NOT
BID!!!!!!!!!! This time I will leave a negative feedback!
I need a simple script that will stop multiple executions of the same page at
the same time! It will allow a page to be executed once at a time and only after
it is done it will execut the next page request!
I know this is not to dificult since I saw the script before implemented in an
advanced login script! Please make your bids resonable!
Each page protected should call a function, so the script should be included in
a function!
Escrow payment will be made right after chosen programmer accept the job and
will be released after we receive and test the script!
Please PM me if you have any questions.
Additional Info (Added 4/5/2005 at 7:03 EST)...

I
need a script that will not allow simultaniously access to a file! I want to
protect a payment script! So if a member clicks withdraw the form sends him to
sell.php and makes the payment! While the sell.php is runned by this member no
other member can withdraw... they will be placed in some sort of queue and after
first member is finished than the next will be allowed to run the file and so
on!
Now I have a proble with a hacker that opens multiple withdrawal pages and
clicks on them at once! That way he manages to withdraw double the amount he has
in balance! Why? Because by the time the first session gets to the point it
alters the database and sets new balance, the second session already passes the
point where balance is checked! I need this to stop by allowing only one run at
a time of that file!

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Operating System:
 Linux
Database System:
 (None)
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