What is the difference between XML and PHP?

[Let me guess...]

Are they both about the same? Please explain!

 

[Chris Jericho]

All I can say about it is that XML is the part of PHP.

 

[David D]

They have practically nothing in common.

XML is a generic markup language, used to make specific markup languages which describe parts of documents.

PHP is a programming language, used to express logic and process data.