Arrays sorting troubles & array_delete[]

[Anon]

I'm trying to learn the array functions & there's just something that I can not nor find arround nor understand by myself. How can I personalise the sorting of an array like those here:

array('zebra-88','italia-21','europe-71','chair-42','car-56',php-11');

sorting from the beginning in the a b c order is okay,... but when you have to personalise everything and make an output like this order here:

php-11
italia-21
chair-42
europe-71
zebra-88

Or even worse like php58adv fta44eng aft33fta etc. to sort into this order:

aft33fta
fta44eng
php58adv

Is there a function to sort that in automatic? Or do you have to create a new function? How & on which criteria?

& if you wanna remove only one in it like the fourth one chair-42

array_delete[4];

What's the alternative for it? For eliminating it?
Thanx. Cheers.

[Anon]

Check out:

http://www.php.net/manual/en/function.usort.php

It'll let you pass a function that can be used for comparing.

To delete, I believe you can do

unset($array[4]);

Diego

[Anon]

Thanx Diego.