sorting arrays

twopeak

Hello

why do I need to reset the array after I sorted it (using asort, or sort)?

If I use an associative array, I need to use asort
but what does it use to sort: keys or values?

and another little question...

I have an array containing
$arr = array("frontname lastname (amount)","frontname lastname (amount)", ......);
can I explode every element, to make an associative array out of it?
I'd like this as a result
$arr = array("frontname lastname"=>"amount", "frontname lastname"=>"amount", ....);

diego25

why do I need to reset the array after I sorted it (using asort, or sort)?

You don't have to -- it depends on what you want to do after you sort the array. If you're going to use functions like each(), then you do need to reset it because each() relies on an internal array pointer and the sorting functions move that pointer till the end. But if you want to access the array randomly (i.e. using the [] operator) then there's no need to reset it.

If I use an associative array, I need to use asort
but what does it use to sort: keys or values?

See the example in the manual:
http://www.php.net/manual/en/function.asort.php

and another little question...

I have an array containing
$arr = array("frontname lastname (amount)","frontname lastname (amount)", ......);
can I explode every element, to make an associative array out of it?
I'd like this as a result
$arr = array("frontname lastname"=>"amount", "frontname lastname"=>"amount", ....);

Yeah, you can. Just explode using '(' as a delimiter, and then call trim wih the second argument ')' to get rid of the last bracket.

Diego