0

ACTUAL SITUATION

MacBook Pro early 2008

OSX Lion 10.7.3

MAMP 2.0.5

ImageMagick-x86_64-apple-darwin11.3.0.tar.gz - installed and perfectly working from Terminal

gplgs-8.71.dmg - installed and perfectly working from Terminal and Imagick

WHAT WORKS?

Using terminal the "convert" command works perfectly! I can convert PDF in JPG without any problem...

WHAT IS THE PROBLEM?

If I try to use Imagick in PHP lunching the (simplest) demo command:

"convert logo: logo.gif"

Nothing happens! I followed this guide step by step and I know that I've to modify the "envvars" file and I made it but... it is not the solution!

I tried to read shell errors but nothing is returned in PHP... I tried all kind of commands:

define('MAGICK_PATH', '/Applications/MAMP/bin/ImageMagick/ImageMagick-6.7.5/bin/');

echo exec(MAGICK_PATH.'convert logo: logo.gif', $output);
var_dump($output);
=> array(0) { }


$output = shell_exec(MAGICK_PATH."convert logo: logo.gif");
echo "<pre>$output</pre>";
=> *nothing*


$last_line = system(MAGICK_PATH.'convert logo: logo.gif', $retval);
echo '
</pre>
<hr />Last line of the output: ' . $last_line . '
<hr />Return value: ' . $retval;
=> Last line of the output:
=> Return value: 5


$last_line = system(MAGICK_PATH.'convert -version', $retval);
echo '
</pre>
<hr />Last line of the output: ' . $last_line . '
<hr />Return value: ' . $retval;
=> Last line of the output:
=> Return value: 5


$last_line = system(MAGICK_PATH."convert -colorspace RGB -interlace none -density 104.6x104.6 -quality 100 -bordercolor white doc.pdf[0] doc.png", $retval);
echo '
</pre>
<hr />Last line of the output: ' . $last_line . '
<hr />Return value: ' . $retval;
=> Last line of the output:
=> Return value: 5

I thought maybe the program wasn't lunched but...I can see it in the task manager and the CPU is working for some seconds, Imagick is doing something but in the end I haven't any kind of output!!! >_< I found a lot of topic about that but I haven't found a working solution...

halfer
  • 19,824
  • 17
  • 99
  • 186
Ryuzaki
  • 15
  • 3
  • I fancy _launching lunch_! Though it's more dinner time here in the UK... Anyway Ryuzaki, @Cal has a good suggestion - try his idea. Also, see [this recent post of mine](http://stackoverflow.com/a/10056329/472495) in which I describe how to supply environment variables to a system command - maybe you need a `PATH` or `HOME` var set for `convert` to work? – halfer Apr 09 '12 at 17:36
  • oh, come on Marc C...I just forgot an "a" =.= try to be more helpful... – Ryuzaki Apr 15 '12 at 17:37
  • halfer, I "solved" putting Imagick executables (bin folder) inside "/opt/local/bin", libraries (lib folder) inside "/ImageMagick-6.7.5/lib" and modifying the "envvars" file in export PATH="$PATH:/opt/local/bin" (other lines are commented) – Ryuzaki Apr 15 '12 at 19:43
  • NOW I have no errors with "convert logo: logo.jpg" but I have problems with PDF conversion...but for today is enough =P next days I try again...I think is another path problem but now with GhostScript =.= – Ryuzaki Apr 15 '12 at 19:48

2 Answers2

2

Try wrapping commands like this:

exec($cmd." 2>&1", $out, $ret);
if ($ret){
    echo "There was a problem!\n";
    print_r($out);
}else{
    echo "Everything went better than expected!\n";
}

exec() lets you capture all output and get the exit code. Adding 2>&1 makes sure to redirect STDERR to STDOUT so you can see any error messages.

Cal
  • 7,067
  • 25
  • 28
  • Great!!! I can finally read something =D This is the error if I write "$cmd = MAGICK_PATH.'convert -version';" There was a problem! Array ( [0] => dyld: Symbol not found: __cg_jpeg_resync_to_restart [1] => Referenced from: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib [2] => Expected in: /Applications/MAMP/Library/lib/libJPEG.dylib [3] => in /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib ) – Ryuzaki Apr 10 '12 at 09:03
  • @Ryuzaki - my comment on the question itself may fix that. I suspect it needs environment variables (PATH, HOME, etc) to find stuff it needs. – halfer Apr 10 '12 at 09:12
  • what can I try to do? I don't know a lot about this things =\ – Ryuzaki Apr 10 '12 at 09:30
0

Also, as an addendum to my earlier comment: try supplying fully-qualified paths to your input and output filenames. Commands are launched in PHP with a default current working directory - and this may not be the same dir that the script is actually contained within.

If you want to see what your default directory is for system commands, try:

exec('pwd');

If any of your paths have spaces in (or if at any stage they contain user input) you should run your parameters through escapeshellarg() to make sure they will work (and that they are safe to run).

halfer
  • 19,824
  • 17
  • 99
  • 186
  • thank you, this was another thing I wanted to check! :) The result is right: Everything went better than expected! Array ( [0] => /Applications/MAMP/htdocs/MIX/PDF ) – Ryuzaki Apr 10 '12 at 09:07