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Top Forums Shell Programming and Scripting CGI passing arrays/hashes to another CGI script Post 33628 by cbkihong on Monday 13th of January 2003 10:22:11 AM
Old 01-13-2003
Hmm. Or you can better do it this way:

You can have script1 generate HTML containing a form (POST HTTP-method) with all your items specified by hidden fields, i.e. generate something like

<form action="script2.cgi" method="post">

<!-- Hidden fields -->
<input type="hidden" name="item0" value="value0">
<input type="hidden" name="item1" value="value1">
<!-- hidden fields end here-->

<input type="submit" value="submit">
</form>

When the visitor hits the submit button, the hidden fields are sent and by reading the form you can parse and get the (item0, value0), (item1, value1) pairs.

If you insist on a hyperlink, then the only method you can pass the info to script2 is by HTTP GET, i.e. on the URL as params. Script1 generates HTML containing a link with href "script2.cgi?item0&amp;item1&amp;..."

Your script then parses the env. variable $ENV{'QUERY_STRING'} and gets all key-value pairs to form the array again.

You will first need to convert the special characters in the array items (say @) into the % form (i.e. %40) in order to form a valid URL.

All such item mangling should be easy if you use CGI.pm.

Of course I prefer the POST method, as the URL is less noisy, and this is the method I use, right now.
 

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Mojo::Message::Request(3pm)				User Contributed Perl Documentation			       Mojo::Message::Request(3pm)

NAME
Mojo::Message::Request - HTTP 1.1 request container SYNOPSIS
use Mojo::Message::Request; # Parse my $req = Mojo::Message::Request->new; $req->parse("GET /foo HTTP/1.0x0ax0d"); $req->parse("Content-Length: 12x0ax0dx0ax0d"); $req->parse("Content-Type: text/plainx0ax0dx0ax0d"); $req->parse('Hello World!'); say $req->body; # Build my $req = Mojo::Message::Request->new; $req->url->parse('http://127.0.0.1/foo/bar'); $req->method('GET'); say $req->to_string; DESCRIPTION
Mojo::Message::Request is a container for HTTP 1.1 requests as described in RFC 2616. EVENTS
Mojo::Message::Request inherits all events from Mojo::Message. ATTRIBUTES
Mojo::Message::Request inherits all attributes from Mojo::Message and implements the following new ones. "env" my $env = $req->env; $req = $req->env({}); Direct access to the "CGI" or "PSGI" environment hash if available. # Check CGI version my $version = $req->env->{GATEWAY_INTERFACE}; # Check PSGI version my $version = $req->env->{'psgi.version'}; "method" my $method = $req->method; $req = $req->method('POST'); HTTP request method, defaults to "GET". "url" my $url = $req->url; $req = $req->url(Mojo::URL->new); HTTP request URL, defaults to a Mojo::URL object. my $foo = $req->url->query->to_hash->{foo}; METHODS
Mojo::Message::Request inherits all methods from Mojo::Message and implements the following new ones. "clone" my $clone = $req->clone; Clone request if possible, otherwise return "undef". "cookies" my $cookies = $req->cookies; $req = $req->cookies(Mojo::Cookie::Request->new); $req = $req->cookies({name => 'foo', value => 'bar'}); Access request cookies, usually Mojo::Cookie::Request objects. say $req->cookies->[1]->value; "fix_headers" $req = $req->fix_headers; Make sure request has all required headers for the current HTTP version. "is_secure" my $success = $req->is_secure; Check if connection is secure. "is_xhr" my $success = $req->is_xhr; Check "X-Requested-With" header for "XMLHttpRequest" value. "param" my @names = $req->param; my $foo = $req->param('foo'); my @foo = $req->param('foo'); Access "GET" and "POST" parameters. Note that this method caches all data, so it should not be called before the entire request body has been received. "params" my $p = $req->params; All "GET" and "POST" parameters, usually a Mojo::Parameters object. say $req->params->param('foo'); "parse" $req = $req->parse('GET /foo/bar HTTP/1.1'); $req = $req->parse(REQUEST_METHOD => 'GET'); $req = $req->parse({REQUEST_METHOD => 'GET'}); Parse HTTP request chunks or environment hash. "proxy" my $proxy = $req->proxy; $req = $req->proxy('http://foo:bar@127.0.0.1:3000'); $req = $req->proxy(Mojo::URL->new('http://127.0.0.1:3000')); Proxy URL for request. # Disable proxy $req->proxy(0); "query_params" my $p = $req->query_params; All "GET" parameters, usually a Mojo::Parameters object. say $req->query_params->to_hash->{'foo'}; SEE ALSO
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>. perl v5.14.2 2012-09-05 Mojo::Message::Request(3pm)
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