douzhan5262
douzhan5262
2015-11-20 10:49

使用gd库加载图像

  • php
  • assets
  • barcode
  • gd
已采纳

I'm trying to generate a barcode using this: https://github.com/davidscotttufts/php-barcode/.

This method requires to install gd library.

I install this library like this on my linux based server:

$ apt-get install php5-gd

After the instalation I restarded the server and looked if it was instaled like this:

php -m

And it was.

Now I added this line to my code to genarate a barcode(I'm generating the link with the twig function "asset"):

<img alt="testing" src="{{ asset('bundles/kopictadmin/code/barcode.php?text=testing') }}"/> 

This gives my the 'Alt' attribute instead of the picture. I'm generating css just like this only branching of to 'css' folder instead of the 'code' folder.

Somebody any idea whats wrong?

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1条回答

  • douchuanchai2793 douchuanchai2793 6年前

    The img tag returns the alt value because the image that you have provided is not a correct image.

    You need to fix the code itself in barcode.php so that the image is properly created and should probably check the result in the browser first so you know that the result of calling barcode.php is actually an image.

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