Heroku - how to enable gd on heroku php application?

问题

Heroku said:

The following built-in extensions have been built “shared” and can be enabled through composer.json (internal identifier names given in parentheses):

But it doesn't give an example, I tried with the following composer.json: { "require": { "gd": "*" } }

But when I git push heroku master, I get:

My composer.json: { "require": { "gd": "*" } }

But when I git push heroku master, I get:

-----> Installing dependencies...
       Composer version 1.0.0-alpha9-19-g10401d5 2014-12-09 11:32:02
       Loading composer repositories with package information
       Installing dependencies
       Your requirements could not be resolved to an installable set of packages.

         Problem 1
           - The requested package gd could not be found in any version, there may be a typo     in the package name.

       Potential causes:
        - A typo in the package name
        - The package is not available in a stable-enough version according to your minimum-    stability setting
          see <https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion> for more details.

       Read <http://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.

 !     Push rejected, failed to compile PHP app

How can I enable gd on heroku???

回答1:

Try it with:

{
    "require": {
        "ext-gd": "*"
    }
}

see here using-optional-extensions

回答2:

Just adding GD as dependency (require) in composer does not load the extension GD. It just tells that this package needs gd enabled. "ext-gd" is just a virtual package, not existing for real.

you have to install it on your platform.

see here composer - platform-packages

来源：https://stackoverflow.com/questions/27380365/heroku-how-to-enable-gd-on-heroku-php-application

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heroku