问题
There have been a few topics similar to mine, but they did not help me. Maybe something new will come up.
Problem: I can't execute wkhtmltopdf form PHP.
My basic code is:
exec('wkhtmltopdf http://somesite.com /home/user/file.pdf');
Now a few things I already checked:
- the same command works when executed from console
- safe_mode is disabled - I can execute commands in PHP, for example
exec('ls');works fine - path to wkhtmltopdf can be found and I can run the program itself, for example
exec('wkhtmltopdf -V');works fine and outputs versioning info - the output path is writable, it has 777 permissions and
exec('wkhtmltopdf -V > /home/user/file.pdf');works fine, creates the file and puts versioning info inside - executing from PHP has internet access, for exemple
exec('wget -O /home/user/file.pdf http://somesite.com')works fine, retrieves the site source and puts it into the file - replacing exec with passthru, shell_exec etc. makes no difference
Concluding: I can execute wkhtmltopdf, I can access internet, I can write the specific file, but a correct conversion command fails and returns status 1.
I use the latest Ubuntu, PHP Version is 5.3.10-1ubuntu3, wkhtmltopdf version is 0.9.9. I tried it also on some other machine with the same retults.
Any (just ANY) ideas will be greatly appreciated!
回答1:
Add 2>&1 to the end of your command to understand the exact error.
exec('wkhtmltopdf http://somesite.com /home/user/file.pdf 2>&1');
This way it will tell you the error when running this under Apache. Once you know what's wrong, it is easier to address. I had a similar problem before with ImageMagick
来源：https://stackoverflow.com/questions/10631605/executing-wkhtmltopdf-from-php-fails