Content-type: text/html

SriniK has asked for the wisdom of the Perl Monks concerning the following question:

Hi Folks,

I have been working with some of Modifiers example.

!#/usr/bin/perl
print "Content-type: text/html\n\n";

$string="I have 5 + 6 Rupees and 6/3 paise";
print "$string\n";


$string=~ s{(\d+\s*[+*/-]\s*\d+)}{$1}eegi;
print "$string\n";


$string="India Chennai New yark";
print "$string\n";

$string=~ s{(\b\w+\b)}{su($1)}eg;
print "$string\n";

sub su{
    $match=shift;
    $match=~s{(\w+)}{uc($1)}gei;
    return $match;
    
    }
[download]

its all working fine. But if i remove "print "Content-type: text/html\n\n";" the same program through error message
Can u guys please explain why

Thanks
Sri

Comment on Content-type: text/html Download Code

Replies are listed 'Best First'.
Re: Content-type: text/html by marto (Cardinal) on Mar 14, 2013 at 10:41 UTC
`!#/usr/bin/perl` Should be: `#!/usr/bin/perl` Update: Please read How do I compose an effective node title?. Consider using a proper CGI framework (CGI or a something else) if you plan on making CGI scripts. For reference Ovid's CGI Course.	[reply] [d/l] [select]
Re: Content-type: text/html by vinoth.ree (Monsignor) on Mar 14, 2013 at 10:43 UTC
~~The first line of our CGI script must be "Content-Type: text/html" and the print statement must have 2 \n characters:~~ ~~One to terminate the current line and the second to produce the require blank line between CGI header and data.~~ Update: Sorry	[reply]
Re^2: Content-type: text/html by marto (Cardinal) on Mar 14, 2013 at 10:46 UTC
This has nothing to do with their problem. If they remove line printing the header, which is what they are reporting, they get an error. Use a proper framework for dealing with CGI (be it CGI or a 'modern' web framework), stop worrying about manually printing headers. Update: Also, printing the header does not have to be the first line of code.	[reply]