FB Profile Pic总是返回为“.jpg”？ [英] FB Profile Pic always returned as ".jpg"?

问题描述

发现奇怪的是，无论我将图像上传到（gif，bmp，tiff或jpg） ），我致电 https://graph.facebook.com/507988137/picture?type=大的（我的图片）总是返回一个jpg。

有谁知道我是否可以假设他的图像总是jpg？我正在使用php get_file_contents来绘制图像&不想嗅探测试他们的各种格式。

解决方案

Facebook不保存您上传的原始图像。相反，它将所有上传的图像转换为4种不同大小的jpg，以支持所有可能显示图像的不同地方。

如果您有兴趣，Facebook基本上具有事实上，我已经阅读过几次，他们是世界上最大的图像托管服务。这个Facebook博客文章中的更多细节， Facebook照片基础设施

Trying to pull user images via the Facebook Social Graph.

Finding it odd that no matter what I upload the image as (gif, bmp, tiff, or jpg), my call to https://graph.facebook.com/507988137/picture?type=large (my pic) always returns a jpg.

Does anyone know if I'm OK assuming that his image is always a "jpg"? I'm using php get_file_contents to pull the images & would prefer not having to sniff test them for various formats.

解决方案

Facebook doesn't save the original image that you upload. Instead it converts all uploaded images to jpgs of 4 different sizes to support all the different places where the image may be displayed.

In case you are interested, Facebook basically has this down to a science, in fact, I've read several times that they are the largest image hosting service in the world. More details within this Facebook blog post, Facebook Photos Infrastructure

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