what is difference between header and include, where which one should be used

Question

I am confused with two terms

1. header (\"Location:homepage_php\");

2. include(\"homepage.php\");

I am g

Answer 1

the main difference in include and header is that the include does not change the url but header does. That means header sends you (redirects you) to that page but include fetch the page for you.

see this example:
this is from test.php which is including file from test2.php

this is from test1.php using header so it redirects me to test2.php