Submitting to Exact Target with cURL

exact-target-curl

<?php //I am using this for an AJAX call, and checking my responses against the success or failure that it is echoing back.

	//create array of data to be posted
	$full_name = stripslashes(trim(strip_tags($_POST['full_name'])));
	$email_address = stripslashes(trim(strip_tags($_POST['email_address'])));
	if(!empty($full_name) && !empty($email_address)){
		$post_data['MID'] = "10488043";
		$post_data['Full Name'] = $full_name;
		$post_data['Email Address'] = $email_address;
		$post_data['thx'] = '';
		$post_data['err'] = '';
	
		//create the final string to be posted using implode()
		$post_str = implode ('&', $post_data);
		foreach($data as $key=>$val) {
			$post_string .= $key.'='.urlencode($val).'&';
		}
	
		$post_str = substr($post_str, 0, -1);
		
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, 'http://cl.exct.net/subscribe.aspx?lid=18086381');
		curl_setopt($ch, CURLOPT_POST, TRUE);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $post_string);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
		$response = curl_exec($ch);
		curl_close($ch);
		echo 'success';
	} else {
		echo 'failure';
	}
?>

Hello jones,
i want to submit an html form but the form does not do the submission by itself ,in the action part of the form i have a php file that is collecting the data and then would now submit into an api(8 fields) i have so that i receive a response and further have a redirect link to the page i should go to once the data submission is successful.