Pinging an IP address using PHP and echoing the result

Question

I have the following function that I doesn t work so far  I would like to ping an IP address and then to echo whether the IP is alive or not   function pingAddress  ip        pingresult   shell exec  start  b ping  ip -n 1         dead    Request timed out         deadoralive   strpos  dead   pingresult        if   deadoralive    false           echo  The IP address   ip  is dead         else           echo  The IP address   ip  is alive              When I call this function using the example   pingAddress  127 0 0 1     The echo result is always  dead  - no matter what   Could someone please help me where I m going wrong  And OR is there a better method of doing this with the same result   Many thanks   Update  Have amended code to include the double quotes but still getting the same  incorrect  results

User · Answer

I use this function     lt  php function is ping address  ip        exec  ping -c1 -w1    ip   outcome   status       preg match     0-9     packet loss     outcome 3    arr       return    arr 1     100     false   true

User · Answer

Do check the man pages of your ping command before trying some of these examples out  always good practice anyway   For Ubuntu 16  for example  the accepted answer doesn t work as the -n 3 fails  this isn t the count of packets anymore  -n denotes not converting the IP address to a hostname     Following the request of the OP  a potential alternative function would be as follows   function checkPing  ip        ping   trim  which ping         ll   exec  ping    -n -c2      ip   output   retVar       if  retVar    0           echo  The IP address   ip  is alive           return true        else           echo  The IP address   ip  is dead           return false

User · Answer

NOTE  Solution below does not work on Windows  On linux exec a  which ping  command from the console  and set command path  of the suggested exec call  accordingly  I think you want to check the exit status of the command  whereas shell exec gives you full output  might be dangerous shall command output change from command version to version  for some reason   Moreover your variable  ip is not interpreted within single quotes  You d have to use double ones     That might be the only thing you need to fix in order to make it work   But I think following code can be more  portable   IMHO it is in fact better to catch the exit status  rather than trying to parse result string  IMHO it s also better to specify full path to ping command    lt  php function pingAddress  ip         pingresult   exec   bin ping -n 3  ip    outcome   status       if  0     status             status    alive         else            status    dead             echo  The IP address   ip  is     status     pingAddress  127 0 0 1

User · Answer

this works fine for me     host  127 0 0 1    output shell exec  ping -n 1    host    echo   lt pre gt  output lt  pre gt      for viewing the ping result  if not need it just remove it  if  strpos  output   out       false        echo  Dead         elseif strpos  output   expired       false        echo  Network Error         elseif strpos  output   data       false        echo  Alive     else       echo  Unknown Error

User · Answer

This also did not work for me in Wordpress  I also tried -t and -n and other ways  but did not work  I used   function pingAddress  ip         pingresult   exec   bin ping -c2 -w2  ip    outcome   status         if   status  0         status    alive         else        status    dead              message      lt div id  dialog-block-left  gt         message      lt div id  ip-status  gt The IP address     ip    is     status   lt  div gt  lt div style  clear both  gt  lt  div gt            return  message       Some IP Address pingAddress  192 168 1 1       This worked perfectly for me  finally  I referred this from http   www phpscriptsdaily com php php-ping  Hope this will help  Well I want to modify this as it is working fine on my localhost but not on my live server For live server  I got another thing which now works for both local as well as live    fp   fSockOpen  ip 80  errno  errstr 1   if  fp     status 0  fclose  fp     else    status 1      Then I show the Server is up for 0 and down for 1   This works perfectly for me  I got this from Ping site and return result in PHP Thanks  karim79

User · Answer

This works fine with hostname  reverse IP  for internal networks  and IP   function pingAddress  ip         ping   exec  ping -n 2  ip    output   status       if  strpos  output 2    unreachable       FALSE            return   lt span style  color  f00   gt OFFLINE lt  span gt          else           return   lt span style  color green   gt ONLINE lt  span gt             echo pingAddress  ip

User · Answer

I have developed the algorithm to work with heterogeneous OS  both Windows and Linux   Implement the following class     lt  php      class CheckDevice            public function myOS                if  strtoupper substr PHP OS  0  3        chr 87  chr 73  chr 78                    return true               return false                     public function ping  ip addr               if   this- gt myOS                     if   exec  ping -n 1 -w 1    ip addr   2 gt NUL  gt  NUL  amp  amp   echo 0      echo 1                         return true                else                   if   exec  ping -q -c1    ip addr    gt  dev null 2 gt  amp 1   echo                           return true                             return false                        ip addr    151 101 193 69    DNS  www stackoverflow com      if   new CheckDevice   - gt ping  ip addr           echo  The device exists       else          echo  The device is not connected

User · Answer

For Windows Use this class   host    www example com    ping   new Ping  host    latency    ping- gt ping    if   latency     false     print  Latency is      latency     ms     else   print  Host could not be reached        https   github com geerlingguy Ping

User · Answer

i just wrote a very fast solution by combining all knowledge gain above      function pinger  address           if strtolower PHP OS    winnt                 command    ping -n 1  address               exec  command   output   status            else               command    ping -c 1  address               exec  command   output   status                     if  status     0               return true           else              return false

[php] Pinging an IP address using PHP and echoing the result

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