Geting the first image url from a post? [closed]

It's difficult to tell what is being asked her开发者_运维百科e. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 11 years ago.

I am trying to create a dynamic website, I have a database with some news, and I wanted to get the first image from the post content

How can I get the first image of the post and display the link?

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Use YQL.