LWP::UserAgent

perldoc LWP::UserAgent

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$ua->post( $url, \%form )
$ua->post( $url, \@form )
$ua->post( $url, \%form, $field_name => $value, ... )
$ua->post( $url, $field_name => $value,... Content => \%form )
$ua->post( $url, $field_name => $value,... Content => \@form )
$ua->post( $url, $field_name => $value,... Content => $content )

This method will dispatch a POST request on the given $url, with %form or @form providing the key/value pairs for the fill-in form content. Additional headers and content options are the same as for the get() method.

This method will use the POST() function from HTTP::Request::Common to build the request. See HTTP::Request::Common for a details on how to pass form content and other advanced features.
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$ua->post( $url, { wert => 123456 } );