How to get the hyperlink from an image when given its url

I was wondering is it possible to get the hyperlink of an image if the image url is give for eg i have a webpage say www.example.com with an image for eg :

<a href="http://ift.tt/1Oibyqx"><img id="img" src="http://ift.tt/1Dr9Kry" alt="The Image" name="img" height="1140" width="800"></a>

i was thinking is it possible to get

http://ift.tt/1Oibyqx

when i give

http://ift.tt/1Dr9Kry

as an input in php?