PROXY  WHOIS  RQUOTE  TEXTS  SOFT  FOREX  BBOARD
 Music  Philosophy  Code  Literature  Russian

= ROOT|Technical|Code_Examples|Perl|site_perl|LWP|Simple.pm =

page 3 of 4



LWP::Simple - simple procedural interface to LWP

=head1 SYNOPSIS

 perl -MLWP::Simple -e 'getprint "http://www.sn.no"'

 use LWP::Simple;
 $content = get("http://www.sn.no/");
 die "Couldn't get it!" unless defined $content;

 if (mirror("http://www.sn.no/", "foo") == RC_NOT_MODIFIED) {
     ...
 }

 if (is_success(getprint("http://www.sn.no/"))) {
     ...
 }

=head1 DESCRIPTION

This module is meant for people who want a simplified view of the
libwww-perl library.  It should also be suitable for one-liners.  If
you need more control or access to the header fields in the requests
sent and responses received, then you should use the full object-oriented
interface provided by the C<LWP::UserAgent> module.

The following functions are provided (and exported) by this module:

=over 3

=item get($url)

The get() function will fetch the document identified by the given URL
and return it.  It returns C<undef> if it fails.  The $url argument can
be either a simple string or a reference to a URI object.

You will not be able to examine the response code or response headers
(like 'Content-Type') when you are accessing the web using this
function.  If you need that information you should use the full OO
interface (see L<LWP::UserAgent>).

=item head($url)

Get document headers. Returns the following 5 values if successful:
($content_type, $document_length, $modified_time, $expires, $server)

Returns an empty list if it fails.  In scalar context returns TRUE if
successful.

=item getprint($url)

Get and print a document identified by a URL. The document is printed
to the selected default filehandle for output (normally STDOUT) as
data is received from the network.  If the request fails, then the
status code and message are printed on STDERR.  The return value is
the HTTP response code.

=item getstore($url, $file)

Gets a document identified by a URL and stores it in the file. The
return value is the HTTP response code.

=item mirror($url, $file)

Get and store a document identified by a URL, using
I<If-modified-since>, and checking the I<Content-Length>.  Returns
the HTTP response code.

=back

This module also exports the HTTP::Status constants and procedures.
You can use them when you check the response code from getprint(),
getstore() or mirror().  The constants are:

   RC_CONTINUE
   RC_SWITCHING_PROTOCOLS
   RC_OK
   RC_CREATED
   RC_ACCEPTED
   RC_NON_AUTHORITATIVE_INFORMATION
   RC_NO_CONTENT
   RC_RESET_CONTENT
   RC_PARTIAL_CONTENT
   RC_MULTIPLE_CHOICES
   RC_MOVED_PERMANENTLY
   RC_MOVED_TEMPORARILY
   RC_SEE_OTHER
   RC_NOT_MODIFIED
   RC_USE_PROXY
   RC_BAD_REQUEST
   RC_UNAUTHORIZED
   RC_PAYMENT_REQUIRED
   RC_FORBIDDEN
   RC_NOT_FOUND
   RC_METHOD_NOT_ALLOWED
   RC_NOT_ACCEPTABLE
   RC_PROXY_AUTHENTICATION_REQUIRED
   RC_REQUEST_TIMEOUT
   RC_CONFLICT
   RC_GONE
=3=

1|2| < PREV = PAGE 3 = NEXT > |4

UP TO ROOT | UP TO DIR | TO FIRST PAGE

Google
 


E-mail Facebook Google Digg del.icio.us BlinkList Fark Furl Ma.gnolia Netscape NewsVine Reddit Slashdot Spurl StumbleUpon Technorati YahooMyWeb LiveJournal Blogmarks TwitThis Live News2.ru BobrDobr.ru Memori.ru MoeMesto.ru

0.00567603 wallclock secs ( 0.00 usr + 0.00 sys = 0.00 CPU)