Show Bid Request small changes to PHP script Bid Request Id: 61862 Bookmark in my 'To Do' list Posted by: frox (7 ratings) (Software buyer rating 10) Non-action Ratio: Above Average - 33.33% Buyer Security Verifications: Excellent Approved on: May 7, 2003 9:05:38 AM EDT Bidding Closes: May 12, 2003 9:04:46 AM EDT Viewed (by coders): 203 times Deadline: 5/15/2003 TIME EXPIRED Phase: 100% of work was accepted by buyer. Coder account has been credited. Max Accepted Bid: Bidding is closed Project Type: Very Small Business Project: under $100 (USD) Bidding Type: Open Auction Categories: PHP Enter chat room for this bid request (0 active users at Sep 1, 2003 9:13:54 AM EDT) Description: I have a simple PHP script to store online the hi-scores of an offline game. I need a few changes to it, maybe 1 hour work! it is called like this: hiscore.php&score=14512&nick=MyName&check=3456123 score is the score nick is the nickname the user will chose check is a checksum of the score to avoid tampering in the score (a numerical function of the score to be agreed upon) The script does: 1 check if the checksum is ok, if otherwise gives an error 2 check if the same nickname / IP has submitted the score in the last hour, if so redirect to a page warning htat the score has been stored already 3 store the information (nickname, score and time). If the player already had a score, overwrite the old score only if it's lower. 4 go to an acknowledgment page saying:"congratulations, you have scored 123 out of 1234 players" In this page there will be also a link saying provide to the "top score list" see below Part B: display the score This script displays the scores it has received, dividing them in pages of N entries each The script is already done, all I need is a few corrections. The problems to correct are: 1) The scores are now kept in an un-sorted file. I would be easy to keep this file sorted, so a lot of things would be easier (see below). There is already a sort routine in the section that shows the list, it just needs to be transplanted in the "store score" section. 2) When the player sends his score, he gets the message "You have scored X out Y" This X is currently his score, it should be his position within the hi-score list (if I am the third top-gamer in a group of 100, I get the message "you have scored 3 out of 100") 3) The other thing is that when in hiscore.php i see "Click here to see the top score list." the link should go to the right page of the score in my list. So, if I am 27th in the score list and $score_per_page is 10, I should go to the third page, with positions 21-30. 4) Check that the nickname is not empty. continued below.... Deliverables: (description continued) 5) change the checksum algorithm. I will have to implement the algorithm on Windows machines, so I need an algorithm that gives the same result on different platforms even with accented characters The easiest solution is: during checksum ignore all characters except 'A'-'Z' 'a'-'z' '0'-'9' 6) For security reasons please discard from all user input the usual harmful characters. 7) in score and check only accept digits The script is enclosed in the ZIP file thanks 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: PHP, linux Must be 100% finished and received by buyer on: May 15, 2003 EDT Deadline legal notes: All times are expressed in the time zone of the site EDT (UT - 5). If the buyer omitted a time, then the deadline is 11:59:59 PM EDT on the indicated date. Additional Files: This bid request includes IMPORTANT additional attached files. Please download and read fully before bidding. Remember that contacting the other party outside of the site (by email, phone, etc.) on all business projects < $500 (before the buyer's money is escrowed) is a violation of both the software buyer and seller agreements. We monitor all site activity for such violations and can instantly expel transgressers on the spot, so we thank you in advance for your cooperation. If you notice a violation please help out the site and report it. Thanks for your help.   Bidding/Comments: All monetary amounts on the site are in United States dollars. Rent a Coder is a closed auction, so coders can only see their own bids and comments. Buyers can view every posting made on their bid requests. See all rejected bids (and all comments) Name   Bid Amount    Date   Coder Rating   Michael Vladimirov (1 ratings) in Novosibirsk, Siberia Russian Federation Bid id: 663,937   N/A May 7, 2003 9:43:21 AM EDT  10 (Excellent)     Do you still need someone to help you? If so please send me the script too...           See 1 private reply(ies) to/from Michael Vladimirov.   Michael Vladimirov (1 ratings) in Novosibirsk, Siberia Russian Federation Bid id: 664,056   N/A May 7, 2003 10:30:31 AM EDT  10 (Excellent)     It seems that this script is written for PHP3... Do you already have PHP4 on your hosting so I can use its features? Michael Vladimirov (1 ratings) in Novosibirsk, Siberia Russian Federation Bid id: 664,085   N/A May 7, 2003 10:44:24 AM EDT  10 (Excellent)     And about the checksum algorithm... I suggest to use md5 here. It is a standard hashing algorithm so you will have no problem finding a code snippet to use it on Windows and it is complex enough to provide very high security when used the right way. Is it ok to use it? Michael Vladimirov (1 ratings) in Novosibirsk, Siberia Russian Federation Bid id: 664,124   N/A May 7, 2003 11:04:34 AM EDT  10 (Excellent)     Is that acceptable to change the data file format a bit? This bid was accepted by the buyer! Michael Vladimirov (1 ratings) in Novosibirsk, Siberia Russian Federation Bid id: 664,317   $22 (USD) May 7, 2003 12:15:01 PM EDT  10 (Excellent)     Here is your script revamped. Attached File           See 13 private reply(ies) to/from Michael Vladimirov.