Problem with exec/system functions

[Xyon75]

Hi i'm n00b in php coding and i have to execute a C++ compiled for win xp program (.exe) from a php page.
The program takes as arguments 2 files: 1st contains parameters, 2nd contains input file. It gives as output another file (as specified in the 1st argument)
when executing from a dos-shell (and all goes ok) i write:

programname param_file source_file

when executing from the php page i tried:

exec("programname param_file source_file");

and

system("programname param_file source_file");

all files and libraries used by program are in the same folder of the php page, but no output file is given... what am i getting wrong?!? 😕

Cheers :p

[james_holden]

void passthru ( string command [, int return_var]) 

This will output any resulting text from the command prompt - not sure if it's unix only (i dont use win for any server stuff). If return_var is set then output to the stddout has been set.

Shell_exec

This is the same as above except the return information is brought back into a string

$foo = shell_exec("ls -l");

Just tried the example above (redhat unfort.) and it works perfectly.