从PHP执行wkhtmltopdf失败 [英] Executing wkhtmltopdf from PHP fails

问题描述

有一些与我的主题相似的主题，但它们对我没有帮助.也许会有新的事情出现.

There have been a few topics similar to mine, but they did not help me. Maybe something new will come up.

问题:我无法执行PHP形式的wkhtmltopdf. 我的基本代码是: exec('wkhtmltopdf http://somesite.com /home/user/file.pdf');

Problem: I can't execute wkhtmltopdf form PHP. My basic code is: exec('wkhtmltopdf http://somesite.com /home/user/file.pdf');

现在我已经检查了几件事:

Now a few things I already checked:

• 从控制台执行时，同一命令有效
• safe_mode已禁用-我可以在PHP中执行命令，例如exec('ls');正常工作
• 可以找到wkhtmltopdf的路径，并且我可以运行程序本身，例如exec('wkhtmltopdf -V');可以正常工作并输出版本信息
• 输出路径是可写的，具有777权限，并且exec('wkhtmltopdf -V > /home/user/file.pdf');可以正常工作，创建文件并将版本信息放入内部
从PHP执行
• 可以访问Internet，例如exec('wget -O /home/user/file.pdf http://somesite.com')可以正常工作，检索站点源并将其放入文件中
• 用passthru，shell_exec等替换exec没什么作用

• 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

结论: 我可以执行wkhtmltopdf，可以访问互联网，可以写入特定文件，但是正确的转换命令失败并返回状态1.

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.

我使用最新的Ubuntu，PHP版本是5.3.10-1ubuntu3，wkhtmltopdf版本是0.9.9. 我也在其他具有相同结果的计算机上尝试过.

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.

任何(只是任何一个)想法将不胜感激！

Any (just ANY) ideas will be greatly appreciated!

推荐答案

在命令末尾添加2>&1以了解确切的错误.

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');

这样，它将在Apache下运行该错误时告诉您错误.一旦知道出了什么问题，就更容易解决.在使用ImageMagick之前，我有一个类似的问题

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

这篇关于从PHP执行wkhtmltopdf失败的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！