How can I ping a server port with PHP

Question

I want a PHP script which allows you to ping an IP address and a port number  ip port   I found a similar script but it works only for websites  not ip port    lt  php  function ping  host   port   timeout         tB   microtime true       fP   fSockOpen  host   port   errno   errstr   timeout      if    fP    return  down         tA   microtime true      return round    tA -  tB    1000   0    ms         Echoing it will display the ping if the host is up  if not it ll say  down   echo ping  www google com   80  10      gt    I want this for a game server   The idea is that I can type in the IP address and port number  and I get the ping response

User · Answer

socket create needs to be run as root on a UNIX system with    socket   socket create AF UNIX  SOCK STREAM  0

User · Answer

You can use exec function   exec  ping    ip     here an example

User · Answer

Test different ports    wait   1     wait Timeout In Seconds  host    example com    ports          http     gt  80       https    gt  443       ftp      gt  21      foreach   ports as  key   gt   port         fp    fsockopen  host   port   errCode   errStr   wait       echo  Ping  host  port   key     gt         if   fp            echo  SUCCESS           fclose  fp         else           echo  ERROR   errCode -  errStr             echo PHP EOL         Ping example com 80  http     gt  SUCCESS    Ping example com 443  https     gt  SUCCESS    Ping example com 21  ftp     gt  ERROR  110 - Connection timed out

User · Answer

I think the answer to this question pretty much sums up the problem with your question      If what you want to do is find out whether a given host will accept   TCP connections on port 80  you can do this    host    193 33 186 70     port   80    waitTimeoutInSeconds   1   if  fp   fsockopen  host  port  errCode  errStr  waitTimeoutInSeconds             It worked    else         It didn t work     fclose  fp         For anything other than TCP it will be more difficult  although since   you specify 80  I guess you are looking for an active HTTP server  so   TCP is what you want   TCP is sequenced and acknowledged  so you will   implicitly receive a returned packet when a connection is successfully   made  Most other transport protocols  commonly UDP  but others as   well  do not behave in this manner  and datagrams will not be   acknowledged unless the overlayed Application Layer protocol   implements it       The fact that you are asking this question in this manner tells me you   have a fundamental gap in your knowledge on Transport Layer protocols    You should read up on ICMP and TCP  as well as the OSI Model    Also  here s a slightly cleaner version to ping to hosts      Function to check response time function pingDomain  domain        starttime   microtime true        file        fsockopen   domain  80   errno   errstr  10        stoptime    microtime true        status      0       if    file   status   -1      Site is down     else           fclose  file            status     stoptime -  starttime    1000           status   floor  status             return  status

User · Answer

If you want to send ICMP packets in php you can take a look at this Native-PHP ICMP ping implementation  but I didn t test it   EDIT   Maybe the site was hacked because it seems that the files got deleted  there is copy in archive org but you can t download the tar ball file  there are no contact email only contact form  but this will not work at archive org  we can only wait until the owner will notice that sit is down

User · Answer

Try this    echo exec  ping -n 1 -w 1 72 10 169 28

User · Answer

function ping  ip        output   shell exec  ping  ip        var dump  output     ping  127 0 0 1      UPDATE   If you pass an hardcoded IP  like in this example and most of the real-case scenarios   this function can be enough    But since some users seem to be very concerned about safety  please remind to never pass user generated inputs to the shell exec function  If the IP comes from an untrusted source  at least check it with a filter before using it

User · Answer

You don t need any exec or shell exec hacks to do that  it is possible to do it in PHP  The book  You want to do WHAT with PHP   by Kevin Schroeder  show s how   It uses sockets and the pack   function which lets you read and write binary protocols  What you need to do is to create an ICMP packet  which you can do by using the  CCnnnA   format to create your packet

User · Answer

In case the OP really wanted an ICMP-Ping  there are some proposals within the User Contributed Notes to socket create    link   which use raw sockets  Be aware that on UNIX like systems root access is required   Update  note that the usec argument has no function on windows  Minimum timeout is 1 second   In any case  this is the code of the top voted ping function   function ping  host   timeout   1           ICMP ping packet with a pre-calculated checksum         package     x08 x00 x7d x4b x00 x00 x00 x00PingHost        socket    socket create AF INET  SOCK RAW  1       socket set option  socket  SOL SOCKET  SO RCVTIMEO  array  sec    gt   timeout   usec    gt  0        socket connect  socket   host  null        ts   microtime true       socket send  socket   package  strLen  package   0       if  socket read  socket  255              result   microtime true  -  ts        else            result   false            socket close  socket       return  result

[php] How can I ping a server port with PHP?

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