Geoff Soper wrote:[color=blue]
> I'm using ImageMagic under UNIX via the exec() function. I'm using it
> to ascertain the dimension of JPEGs. The code which is causing
> problems is below, I've used debugging code to try and work out what
> is going on with the results as shown in a browser. I've then taken
> what appears to be sent to the exec() function and copied it straight
> into a termal on the same machine. When running in PHP the
> $exec_output array seems to be empty but on the terminal I'm getting
> output. Can anyone suggest why this might be so?
>
> Thanks,
> Geoff Soper
>
> -----------------------
> Code:
> <snip>
> $identify_cmd = "/home/<username>/ImageMagick/bin/identify -format
> \"%w:%h\" \"JPEG:$input_path\"[0]";
> <snip>
> exec ($identify_cmd, $exec_output);
> echo "identify_cmd = $identify_cmd<br>";
> echo 'exec_output = ';
> print_r($exec_output);
> echo '<br>';
> list($input_width, $input_height) = split(":", $exec_output[0]);
> echo "input_width = $input_width<br>";
> echo "input_height = $input_height<br>";
> exit;
> -----------------------
>
> -----------------------
> Browser:
> identify_cmd = /home/<username>/ImageMagick/bin/identify -format
> "%w:%h" "JPEG:<path>/Panorama 3.jpg"[0]
> exec_output = Array ( )
> input_width =
> input_height =
> -----------------------
>
> -----------------------
> Terminal:
> bash-2.05a$ /home/<username>/ImageMagick/bin/identify -format "%w:%h"
> "JPEG:<path>/Panorama 3.jpg"[0]
> 6217:2604
>
> bash-2.05a$
> -----------------------[/color]
Geoff,
ImageMagick may be using STDERR for output instead of STDOUT. Try executing:
/home/<username>/ImageMagick/bin/identify -format "%w:%h" 1>/dev/null
and see whether you are still getting output to the console.
Nathan
