Question

The following redirects me to google.com

Hello!!!
<?php
echo 'ouch!';
header('Location: http://www.google.com');
?> 

Shouldn’t this not work because text is being outputted before a header is sent?

Answer 1

no it will always redirect unless you flush the output before the redirect

Hello!!!
<?php
    echo 'ouch!';
    flush(); //This will cause an error on the next line and stop the page from redirecting
    header('Location: http://www.google.com');
?> 

will not redirect but it will generate an error about headers already being sent