breaking up strings

rebecca

what i'm doing is writing some code for breaking up domain name's that will work for the .name extensions (i.e. john.smith.name) aswell as all the others. Now, i could just take out any that end in .name but to make the code a bit more future proof, I'd prefer not to do that.

if i find the extension $extn in the string, is there a way of saying 'i want the rest of the string to go in the $name variable.' Or to put it mathematically:
$name = $wholedomain - $extn

something like substr but i don't have a way of telling how long each substring will be.
I'm sorry if I've missed something obvious, I'm only a baby programmer.

thanks for any help,
reb

matto

$whole = "john.smith.name";
$parts = explode('.', $whole);

$extn = array_pop($parts); // last element
// parts is now reduced by the last element
$name = implode('.', $parts); // the rest tied together again

requires php4.
hth!

rebecca

thanks a lot . . .

the only problem is that sometimes the extension won't be just the last part of $whole, sometimes it will be the last two parts. Any ideas on that bit?

thanks, reb

rebecca

humm . . .

i think that i will have to check and see if it fits a two part extension first and then if not, go through for one part as you have just shown me.

thanks again!
reb

Anon

Okay, if you explode it and it is a three part extention

say

$name = explode('.'$whole);

if($name[3]){echo'Hey there is a fourth item here - $name[3]';}else{echo"no fourth item";}

when $name is something like mike.blunt.com.au (my personal site, for want of a better example)

you will end up (after exploding) with

$name[0]='mike';
$name[1]='blunt';
$name[2]='com';
$name[3]='au';

put it together however you like, just use an if statement to stop any additional . on the last character. I hope this is making sense. email me direct if you run into troubles.

mike