[webzila]

Does anyone know if there are any PHP scripts that will allow you to run Ping and Traceroute without utilizing the PHP system() function or use the network utilities on the server..

I understand that this wouldnt be a 'real' ping or traceroute but anything will do for me.

I used to have a script that utilized the system() command but the webhost disabled it.

Then I had a script which did something like this:

PHP Code:

function p($target){

message("<p><b>Ping Results:</b><blockquote>"); if (! $msg .= trim(nl2br(`ping -c5 '$target'`))) #bugfix

$msg .= "Ping failed. Host may not be active."; $msg .= "</blockquote></p>"; message($msg); }



function tr($target){

message("<p><b>Traceroute Results:</b><blockquote>"); if (! $msg .= trim(nl2br(`/usr/sbin/traceroute '$target'`))) #bugfix

$msg .= "Traceroute failed. Host may not be active."; $msg .= "</blockquote></p>"; message($msg); } 

That script doesnt seem to use the system() function but has also stopped working recently so I was looking for something that would not depend on the Ping and Traceroute utilities on the server but rather 'mimic' those functions and provide comparable output.

Thanks

[bizzar528]

There's probably something for tracert, but I did remember seeing a php ping script that uses socket connections.

Link -- http://us3.php.net/sockets

Look for a post by noSanity. Here's his code from the site:

PHP Code:

<?php



class Net_Ping

{

  var $icmp_socket;

  var $request;

  var $request_len;

  var $reply;

  var $errstr;

  var $time;

  var $timer_start_time;

  function Net_Ping()

  {

   $this->icmp_socket = socket_create(AF_INET, SOCK_RAW, 1);

   socket_set_block($this->icmp_socket);

  }

  

  function ip_checksum($data)

  {

     for($i=0;$i<strlen($data);$i += 2)

     {

         if($data[$i+1]) $bits = unpack('n*',$data[$i].$data[$i+1]);

         else $bits = unpack('C*',$data[$i]);

         $sum += $bits[1];

     }

     

     while ($sum>>16) $sum = ($sum & 0xffff) + ($sum >> 16);

     $checksum = pack('n1',~$sum);

     return $checksum;

  }



  function start_time()

  {

   $this->timer_start_time = microtime();

  }

  

  function get_time($acc=2)

  {

   // format start time

   $start_time = explode (" ", $this->timer_start_time);

   $start_time = $start_time[1] + $start_time[0];

   // get and format end time

   $end_time = explode (" ", microtime());

   $end_time = $end_time[1] + $end_time[0];

   return number_format ($end_time - $start_time, $acc);

  }



  function Build_Packet()

  {

   $data = "abcdefghijklmnopqrstuvwabcdefghi"; // the actual test data

   $type = "\x08"; // 8 echo message; 0 echo reply message

   $code = "\x00"; // always 0 for this program

   $chksm = "\x00\x00"; // generate checksum for icmp request

   $id = "\x00\x00"; // we will have to work with this later

   $sqn = "\x00\x00"; // we will have to work with this later



   // now we need to change the checksum to the real checksum

   $chksm = $this->ip_checksum($type.$code.$chksm.$id.$sqn.$data);



   // now lets build the actual icmp packet

   $this->request = $type.$code.$chksm.$id.$sqn.$data;

   $this->request_len = strlen($this->request);

  }

  

  function Ping($dst_addr,$timeout=5,$percision=3)

  {

   // lets catch dumb people

   if ((int)$timeout <= 0) $timeout=5;

   if ((int)$percision <= 0) $percision=3;

   

   // set the timeout

   socket_set_option($this->icmp_socket,

     SOL_SOCKET,  // socket level

     SO_RCVTIMEO, // timeout option

     array(

       "sec"=>$timeout, // Timeout in seconds

       "usec"=>0  // I assume timeout in microseconds

       )

     );



   if ($dst_addr)

   {

     if (@socket_connect($this->icmp_socket, $dst_addr, NULL))

     {

     

     } else {

       $this->errstr = "Cannot connect to $dst_addr";

       return FALSE;

     }

     $this->Build_Packet();

     $this->start_time();

     socket_write($this->icmp_socket, $this->request, $this->request_len);

     if (@socket_recv($this->icmp_socket, &$this->reply, 256, 0))

     {

       $this->time = $this->get_time($percision);

       return $this->time;

     } else {

       $this->errstr = "Timed out";

       return FALSE;

     }

   } else {

     $this->errstr = "Destination address not specified";

     return FALSE;

   }

  }

}



$ping = new Net_Ping;

$ping->ping("www.google.ca");



if ($ping->time)

  echo "Time: ".$ping->time;

else

  echo $ping->errstr;



?>

[Augustino]

I used your script and say this warnings:

Warning: socket_create() Unable to create socket [1]: Operation not permitted in /home/august7/public_html/crearting/ping.php on line 14

Warning: socket_set_block() expects parameter 1 to be resource, boolean given in /home/august7/public_html/crearting/ping.php on line 15

Warning: socket_set_option() expects parameter 1 to be resource, boolean given in /home/august7/public_html/crearting/ping.php on line 79
Cannot connect to www.google.ca

Which is the problem?

[Augustino]

Also found this http://pear.php.net/package/Net_Ping but have a require("pear.php");

Where can I find this file?