Execute help command and check its output : System Command « Development « PHP






  1. PHP
  2. Development
  3. System Command

Execute help command and check its output



<?php
$command = "help";
$logged_in = explode(' ', shell_exec($command));
for ($i = 0; $i < count($logged_in); $i++) {
   if ($argv[1] == trim($logged_in[$i])) {
      $found_user = 1;
   }
}
if($found_user) {
   print "User $argv[1] is currently logged in\n";
} else {
   print "User $argv[1] is NOT currently logged in\n";
}
?>








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