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  • Matching variables within variables.

    I'm using a form to gather some information and store it to a file, but if the same information is entered, I want to let the user know the info has been entered. Basically I want to do this:

    $linetowrite=$userid."|".$experiment."|".$yearlastused."|".$termlastused."|".$weeklastused."|".$then umber;
    $dateandtime=&thedate();
    open(FILEDATABASE,'textfiles/lastuse.db');
    @data = <FILEDATABASE>;
    close(FILEDATABASE);
    $writeit=1;
    foreach $line(@data){
    if($line =~ /$linetowrite/){
    &printError('This information already exists!');
    $writeit=0;
    }
    }
    if($writeit==1){
    open(FILEDATABASE,'>>textfiles/lastuse.db');
    print FILEDATABASE $linetowrite."|".$dateandtime."\n";
    print 'Data written';
    close(FILEDATABASE);
    }


    Fairly simple code but my matching condition is always true regardless of input (after the first entry). Is there something wrong with my quotes? That's all I can think of. I wanted to put in the upload time separately so it wouldn't try to match that in the linetowrite variable.

    Thanks in advance from yet another newbie question.

    RTP
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