Oops no! it shows this one: string(100) "'C:/Program\' is not recognized as an internal or external command, operable program or batch file. " On Fri, Feb 17, 2012 at 4:10 PM, Negin Nickparsa <nickparsa@xxxxxxxxx>wrote: > ok sorry,I tried yours It generates Null. > > > On Fri, Feb 17, 2012 at 4:06 PM, Stuart Dallas <stuart@xxxxxxxx> wrote: > >> Please quote the relevant parts of the email you're replying to - your >> emails have massively diminished usefulness to the archives. >> >> On 17 Feb 2012, at 12:21, Negin Nickparsa wrote: >> >> It generates NULL >> >> >> My bad, try this… >> >> $cmd = 'C:/Program\\ Files/GAMS23.7/gams.exe'.' >> '.escapeshellarg('C:/Program >> Files/GAMS23.7/trnsport_php.gms').' 2>&1'; >> >> If that still doesn't seem to work, I suggest you try just executing the >> command without arguments… >> >> $cmd = 'C:/Program\\ Files/GAMS23.7/gams.exe 2>&1'; >> >> Backticks execute a command and return the output: >> http://php.net/language.operators.execution >> >> -Stuart >> >> -- >> Stuart Dallas >> 3ft9 Ltd >> http://3ft9.com/ >> >> >