I have this code in a loop which runs a large regexp from a very large text file. Each line in the file has one of seven different dates. I want to create %2007111, say, then %20071112 as required. If the hash already exists then I do stuff to the hash. Could anyone help me? (first post) 
$date = $4.$3.$2;
if (eval("\%$date")) {
    print "<TD class=table_font>$date - Hash exists</TD>\n";
    # play with hash
} else {
    print "<TD class=table_font>$date - Hash doesn't exist</TD>\n";
    # create the hash
    eval("\%$date = ()");
    # play with hash
}

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David

In reply to Dynamically creating a hash based on a variable by beethamd

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