pcntl_exec
  Executes specified program in current process space
  
 
 
  Description
  
   bool pcntl_exec
    ( string $path
   [, array $args
   [, array $envs
  ]] )
  
  
 
  Parameters
  
   
    
     - 
path
- 
      
       pathmust be the path to a binary executable or a
       script with a valid path pointing to an executable in the shebang (
       #!/usr/local/bin/perl for example) as the first line.  See your system's
       man execve(2) page for additional information.
 
- 
args
- 
      
       argsis an array of argument strings passed to the
       program.
 
- 
envs
- 
      
       envsis an array of strings which are passed as
       environment to the program.  The array is in the format of name => value,
       the key being the name of the environmental variable and the value being
       the value of that variable.
 
 
 
  Return Values
  
   Returns FALSE on error and does not return on success.