I'm using a pair of arrays containing anonymous hashes to add URLs to some Item ID's for our stockroom's online catalog. To do this, I use the following code to add a key/value pair to those anonymous hashes:

$n=0;
for my $el (@products) {
    if ( exists $products[$n]{"Vendor Item ID"} ) {
        $m = 0;
        for my $el (@config) {
            if ( exists $config[$m]{Vendor} ) {
                if ( $config[$m]{Vendor} =~ /$products[$n]{Name}/ ) {
                    $url= $config[$m]{URL};
                    $url=~ s/\*/$products[$n]{"Vendor Item ID"}/g;
                    $products[$n]{TaggedID} = $url;
                }
            }
            $m++;
        }
    }
    $n++;
}

[download]

This works fine--as long as I don't use strict. The problem is that if I use strict, and declare the $url variable with 'my', running that substitution seems to clear out the variable, so that $products$n{TaggedID} gets set to nothing.

Why? And on a related note, is there a better way to do this? I'm still pretty new to perl.

For reference, one of the URLs looks like this: http://www1.qiagen.com/Search/Search.aspx?SearchTerm=*and the idea is to trade the * for whatever is in the 'Vendor Item ID' column, then store that in the appropriate hash.

In reply to Why does this code break if I properly set the scope? by stockroomguy

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