[PHP] usort inside a class

[It Maq <itmaqurfe@xxxxxxxxx>]

Hi,

i'm trying to build a class that sorts a multidimensional array.
I'm using the php function "usort".

I declared the comparision function as a method of my class but i'm unable to give it as argument to the function usort.

this "usort($this->arr, $this->cmpi)" gaves the following error: usort() [function.usort]: Invalid comparison function

i tried to do "usort($this->arr, 'cmpi')" but it does not work either.

Thanks


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