linux - Run bash command via PHP, change dir then execute binary -

So what I'm trying to do here is to start a binary under a PHP script I am trying to Apache has pseudo access, this work works fine when it runs through a logged-in screen as a "test".

  Pastor ('Bash-C' pseudo-o test CD / home / test / cs /; / hlls_r un '');  

I can also add

  past ('Bash-C' pseudo-o test. / Home / test / cs / hlds_run "') ;  

How the binary is written, will not work because of this (unless you test it on the terminal, it will not get the resource)

If everyone has access to / home / test / cs :

  Pastra ('CD / Home / Test / CS & SUUDO-U Test ./hlds_run');  

If only user test has access to the directory:

  passhtru ('sudo -u test sh -c' cd / home / test / cs & amp; / hlds_run ''); To arrive at the second allocation, you should already be familiar with the  system  vs  execve  ( passthru  and  sudo  Respectively). 
 
 
 
 This is the shell string we set to run as a specific user: 
 
  CD / Home / Test / CS & amp; ./hlds_run  
 
 
 
 We can make sure that it always runs with  sudo  as a specific user, but  sudo  Uses Exotic Semantics We need to convert our Shell string to a  execve  array, and because this command is a shell functionality such as  cd  Is dependent on and does not include dynamic values ​​in B, the best way to do this is simply to interpret verbatim To open a shell is: 
 
 { sh ,  -c ,  cd / home / test / cs & amp;  
  
 
 Now we can implement  sudo  to run as our specific user: 
 
 {< Code> pseudo ,  -u ,  test ,  sh ,  -c ,  cd / Home / test / cs & amp; Amp; ./hlds_run } 
 
 
 
  passthru runs  in the form of a shell, so now let us see the  execve  shell The above array in the string, quoting to ensure the shell, will be parsed in the exact logic list above with extreme caution. Fortunately this is a relatively simple matter: 
 
  pseudo-o test sh -c "cd / home / test / cs and ./ hlds_run"  
 < / Li> 
 
 Now let us give it to  passthru : 
 
  passthru ('sudo -u test sh -c) for CD / Home / Test Can / cs & amp; ./hlds_run "');