sort()

[marcnyc]

I have a question about sort()
I have an array with some text strings in it which I need to sort alphabetically.
It works fine, except that it seems to be case-sensitive, which I don't want.
In other words the string aaa comes after the string ZZZ. How can I make sort() case-insensitive withouth transforming everything into lowercase (I need the output to keep the capitals where they are).
Thanks

[onion2k]

From the comments in the annotated manual on php.net (which is a very good place to look..):

function cmp($a, $b) {
   return strcmp(strtolower($a), strtolower($b));
}

$fruits[] = "lemons";
$fruits[] = "apples";
$fruits[] = "grapes";

usort($fruits, "cmp");

[marcnyc]

I know that you are tired of answering questions that the manual answers especially when people don't take the time to read the manual, but I did read the manual and its notes and I had even seen that function... Unfortunately I was unable to understand what the values $a and $b in the function are supposed to be...
I only have an array, no variables.
What am I supposed to pass to that function?

[laserlight]

usort() is a user defined sort function.
It takes the array to be sorted as the first argument, and the name of the comparison function as the next.

$a and $b would be dummy elements, so you're comparing $a with $b.

[marcnyc]

Not sure I quite get it but it works.