Decoding the Input Data : Form « CGI « Perl






  1. Perl
  2. CGI
  3. Form

Decoding the Input Data

 

<html>
<body>
<form action="index.pl" method=get>
Name: <BR>
<input type="text" size=50 name=name>Salary ($####.##): <BR>
<INPUT TYPE="text" SIZE=30 NAME=Salary>Birth date (mm/dd/yy): <BR>
<input type="text" size=30 name=birthdate><P/>
<input type=submit value="Submit Query">
<INPUT TYPE=RESET VALUE="Reset">
</form>
</body></html>


//File: index.pl
   

#!c:/perl/bin/perl
print "Content-type: text/html\n\n";
print <<HTML;
 <html><title>Decoding the Input Data</title>
 <body>
 HTML
 print "Decoding the query string";
$inputstring=$ENV{QUERY_STRING}};
print "<B>Before decoding:</B>";
print "<P>$inputstring";
@key_value=split(/&/,$inputstring);
foreach $pair ( @key_value){
   ($key, $value) = split(/=/, $pair);
   $value=~s/%(..)/pack("C", hex($1))/ge;
   $value =~ s/\n/ /g;
   $value =~ s/\r//g;
   $value =~ s/\cM//g;
   $input{$key}=$value ; # Creating a hash
}
print "<HR>";
print "<P><B>After decoding:</B><P>";
   while(($key, $value)=each(%input)){
   print "$key: <I>$value</I><BR>";
}
print <<HTML;
<hr>
</body>
</html>
HTML








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