I need to develop a webportal which will display the images generated by a GIS software package. I my development I need to run gdal command inside php exec() function. but I don't know how to do this.


it works under PHP 4, PHP 5. beside this you can use passthru command too.. passthru command execute an external program and display raw output.

exec — Execute an external program


string exec ( string $command [, array &$output [, int &$return_var ]] )

exec() executes the given command.

there is an example here. but they are complaining that it works a bit slow.


// gdal_translate converts GIS data
// in this case, simply copy a GeoTIFF with no transforms
$command = 'gdal_translate /tmp/in.tif /tmp/out.tif';

$t0 = microtime(true);
$t1 = microtime(true);

printf("%.1f seconds", $t1 - $t0);

i hope it helps you...

  • 2
    @Mehedi - Please mark this as accepted if it indeed solved your problem. – Chad Cooper Jun 1 '12 at 14:08

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.