Top level domains

[Anon]

If a visitor ISP has a hostname like this xxxx.xx.xx.de or yyy.yy.se, how do I easily cut the first part away and keep the top level domain (.de or just de)?

Thanks from a newbie,
Michael

[[deleted]]

The manual is full of info. Read it.

substr() can grab strings starting at a position.
strrpos() can find the last posistion of a character in a string.

$hostname="www.bla.com";
echo substr($hostname,strrpos($hostname,".")+1);