Exec with Swetest output is not displayed on Browser but works locally

[hzzg6y]

Dear all,

I need help urgently. Please review the below code. 

<?php
error_reporting(E_ALL);
error_reporting(-1);
// phpinfo();
if(@exec('echo EXEC') == 'EXEC'){
        echo 'exec works';
        $ram=array();
        echo exec("whoami");
        exec("swetest -b$20.06.1998 -ut02.40.00 -p0123456789DAttt -eswe -house40,37,p -flsj -g -head", $ram);
        //shell_exec("swetest -b$20.06.1998 -ut02.40.00 -p0123456789DAttt -eswe -house40,37,p -flsj -g -head");
        print_r($ram);
        }
?>

This Array Ram is empty Array{} when I run in in URL on browser but when I run the same PHP code on Putty Linux Terminal, it gives below result.  

(
    [0] =>  69.4699711    0.9589330      12.7711722
    [1] =>  137.2047430  12.6210423       3.6491743
    [2] =>  57.5155629    2.0043804      12.4929126
    [3] =>  31.3153898    1.1640522      11.8892585
    [4] =>  64.9341541    0.7061970      12.6475111
    [5] =>  354.5698247   0.1370835      10.9268075
    [6] =>  29.0617305    0.1066860      11.8413060
    [7] =>  312.6691481  -0.0108831       9.4849388
    [8] =>  301.9767792  -0.0136113       9.0252288
    [9] =>  246.6157497  -0.0273073       7.0543078
    [10] =>  223.8406492         -0.0627669       6.1963588
    [11] =>  198.5784533          0.1113581       5.6143622
    [12] =>  155.4844488         -0.0261982       4.3224287
    [13] =>  155.4844488         -0.0261982       4.3224287
    [14] =>  155.4844488         -0.0261982       4.3224287
    [15] =>  78.0000935   4.3224287
    [16] =>  99.9959839   4.3224287
    [17] =>  121.4227768          4.3224287
    [18] =>  146.1570660          4.3224287
    [19] =>  178.0430227          4.3224287
    [20] =>  218.1001694          4.3224287
    [21] =>  258.0000935          4.3224287
    [22] =>  279.9959839          4.3224287
    [23] =>  301.4227768          4.3224287
    [24] =>  326.1570660          4.3224287
    [25] =>  358.0430227          4.3224287
    [26] =>  38.1001694   4.3224287
    [27] =>  78.0000935   4.3224287
    [28] =>  326.1570660          4.3224287
    [29] =>  328.3998653          4.3224287
    [30] =>  220.1804870          4.3224287
)
 

It is Exec permission issue or Swetest 32 bit issue or 64 bit issue. Output comes on terminal while on browser the array is empty. Please advice. 

I am using Cpanel with Alamlinux 9 on a VPS. 

 

[requinix]

Have you already confirmed with your whoami that PHP is running as the same user as you use for SSH? Have you checked for error output from the command?

[gizmola]

Additionally to the potential problems pointed out by requinix, there is also the possibility that "swetest" is not available in the path, so the user that php is running as (and this depends on your environment ie. are you running apache with mod_php or are you running php-fpm or what) either does not have permissions or again can't find program.  First thing I would suggest is making sure you specify the full path to swetest.  The other thing you should do is include a 3rd parameter to exec.  If will also return boolean false on exec error, so:

 

if (false === exec("swetest -b$20.06.1998 -ut02.40.00 -p0123456789DAttt -eswe -house40,37,p -flsj -g -head", $ram, $returnCode)) {
   echo "Failed with $returnCode";
   die();
}
echo '<pre>' . print_r($ram)  . '</pre>';