Hello Monks I have a flast CSV database of 50,000 codes. Once a users has requested a code it then needs to be tagged as used/removed so other users wont be served the same code. I can generate the code and filter it against the pool of codes so I end up with an array of codes minus the one served to that user: 

open (DB, "<".$codes_db) || die ("Can't open $codes_db");
while (<DB>) { 
&cleanData($_); # this removes white space
push(@buffer, $_) unless ($_ eq $code); }
close (DB) || die ("Can't close $codes_db");

[download]
This is where i am stuck. What is the best way to put the @buffer array with all the unused codes back into the code pool or mark them as used? Thanks

2006-11-15 Retitled by planetscape, as per Monastery guidelines
Original title: 'Help with codes'

In reply to Changing records in a text file by Anonymous Monk

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