String Comparison Issue with xml and php

[street fighter]

I have a problem with xml in php... when I say \[code\]echo $meta2->nodeValue;\[/code\] It shows Address but when I say \[code\]if ($meta2->nodeValuehttp://stackoverflow.com/questions/12302101/=="Address"){echo $meta2->nodeValue;}\[/code\] it does not show anything... Any ideas? nodeType=1