I have extremely weird issue, which i can't explain for now. I use Imagick library to edit uploaded images and have following peace of code:
echo shell_exec( 'which jpegoptim' );
$image = new Imagick( '/path/to/the/image.jpg' );
echo shell_exec( 'which jpegoptim' );
The problem is that I receive following output:
/usr/bin/jpegoptim
Warning: shell_exec(): Unable to execute 'which jpegoptim' in ... line 129
This means that shell_exec works properly before I create an image object and doesn't work after it. What am I doing wrong?
The image which I use could be found here.
Update #1: everything work just fine if I use GD instead of Imagick, but I want to resolve that weird issue with Imagick.
Update #2: further more such weird behaviour appears only for certain images, some jpeg images are processed fine, some aren't.
Update #3: There is no issues with file permissions, GD processes the same file just fine and shell_exec works fine after it.
Update #4: The var dump of the $image variable:
class Imagick#395 (0) {
}
The question is about shell_exec, which doesn't work after Imagick constructor with certain image passed into it.