Name value pairs

The name/value pairs are the values of the FORM fields, and their associated names for identification. The name/value pairs are encoded as:

name=value&name=value&name=value . . .

The ampersand character (&) separates one name/value pair from another, so you can separate them easily with Perl's split function like this:

@pairs = split(/&/, $query_string)

Likewise, the equal sign (=) is used to separate the name from the value within each pair. So you can separate the name from the value like this:

($name, $value) = split(/=/, $pair)

This allows you to use this sort of construct in Perl to extract the name/value pairs from the query string:

foreach $pair (split(/&/, $query_string)) {
 ($_qsname, $_qsvalue) = split(/=/, $pair);
 . . . 
}