(PHP 4 >= 4.3.0, PHP 5, PHP 7)
Execute a command and open file pointers for input/output
resource proc_open ( string $cmd, array $descriptorspec, array &$pipes [, string $cwd [, array $env [, array $other_options ]]] )
proc_open() is similar to popen() but provides a much greater degree of control over the program execution.
Parameters:
cmd
The command to execute