_wsystem and _wexec support

[hfhchan]

Since PHP only has system(), it is impossible to run a command line that contains Unicode chars outside the current codepage. However, Windows apps actually run a command line that contains Unicode chars by using _wsystem() instead of system() in the Windows C Runtime Library.

I wonder if you could provide a wfio_system() function that is a UTF-8 accepting equivalent system() function for PHP? (This function would similarly need to convert UTF-8 to UTF-16 before calling _wsystem().)

It will be very much appreciated if both _wsystem and _wexec, as well as utf-8 versions of shell_exec and passthru, could be supported!

[kenjiuno]

Hi, thanks for detail feedback! I'll try to support them.