I would normally do this as: 
use CGI::Simple;

my $q = CGI::Simple->new;

my %input = $q->Vars;

print $q->unescapeHTML( $input{'app_name'} );

[download]
The 1st line loads up the CGI::Simple module,
the 2nd line creates a new CGI::Simple object,
the 3rd line creates a hash containing all input sent to the CGI script (POST and GET),
the 4th line passes the $input{app_name'} value to the CGI::Simple's object method unescapeHTML.
That is necessary because any '&'s sent to your program will already have been HTML-encoded and will no longer be plain '&'s.

See CGI::Simple for more info.

In reply to Re: Parsing "&" from header. by fireartist
in thread Parsing "&" from header. by Anonymous Monk

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