How to get source code of iframe

for example

<iframe width="640" height="480" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="

-page-within-website" id=“myFrame” name=“myFrame”></iframe>

using php get source code iframe

Why are you trying to embed content from Sitepoint in an external site…

we have the site with home survey no details that site consist embed iframe about 28000 villages for each i want total surveyno that why i need the code of iframe