I have the following string as a PHP variable.
<div class="entry-content-asset">
<div class="embed">
<iframe width="500" height="281" src="https://www.youtube.com/embed/DSP_yxvRZOA?feature=oembed" frameborder="0" allowfullscreen></iframe>
</div>
</div>
I need to programatically search this string and find only the Video ID DSP_yxvRZOA
The string is the same every time save for the youtube video id. I am terrible at writing regular expressions, can anyone save me?