Sending variables as post

I need a script to send some variables as post. Basically I need to replicate a form that sends values with method post. No need for login, cookies or something else.
I will appreciate any help.

 

www.php.net/curl

 

Hope it's what you need

			function format_post($data) {
				$result = "";
				foreach ($data as $k => $v) {
					$result .= "&".urlencode($k)."=".urlencode($v);
				}
				return substr($result, 1);
			}


				$ch = curl_init();
				curl_setopt($ch, CURLOPT_URL, $url);
				curl_setopt($ch, CURLOPT_POST, 1);
				$params = array(
					"a" => $a,
					"b" => $b,
				);
				curl_setopt($ch, CURLOPT_POSTFIELDS, format_post($params));

				curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
				curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
				$result = curl_exec($ch);
				curl_close($ch);

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