<?php
class Ping extends CI_Controller{
 
	function __construct(){
		parent::__construct();
	}
 
	function Index(){
		$this->load->view('ping');
	}
 
	function Result(){
		if(isset($_POST['submit'])){
			$ip=$_POST['ip'];
			exec("ping -n 3 $ip", $output, $status);
			$data['title']="$output, $status";
			$this->load->view('ping',$data);
		}
	}
 
 
}

<?php
	echo form_open('ping/result');
	?>
	<table>
		<tr>
			<td><input type="textbox" name="ip"></td>
		</tr>
		<tr>
			<td><button type="submit" name="submit">Submit</button></td>
		</tr>
	</table>
</form>
 
<?php echo $title; ?>