pcntl_exec
(PHP 4 >= 4.2.0, PHP 5)
pcntl_exec — Executes specified program in current process space
Description
Executes the program with the given arguments.
Parameters
- path
- 
      path must 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
- 
      args is an array of argument strings passed to the program. 
- envs
- 
      envs is 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.