On Thu, Apr 22, 2010 at 2:12 PM, Ashley Sheridan <a...@ashleysheridan.co.uk>wrote:
> I've not had to do this before, and now that I am, I've hit a bit of a > wall: > > Basically, I've an array that might look like this (the number of > elements may vary, but the letter is always unique and remains a single > character): > > Array( > 0 => '2h' > 1 => '1d' > 2 => '2w' > ) > > And I need to sort them according to their letter. If I wasn't using > classes, I could just use usort($array, 'custom_sort') but when I do > that within my class, I'm told it can't find the function. I've tried > usort($array, $this::custom_sort) and usort($array, > $Gantt_Task::custom_sort), both of which throw up the rather frightening > unexpected double colon error (if you've ever seen one you'll know what > I'm on about!) > > Does anyone know how I can do a usort within a class without resorting > to making my sorting function a global function that isn't part of the > class? I'd rather keep this tidy and everything in the class that needs > to be in it, so a random function sitting outside is something I want to > avoid if possible. > > Alternatively, if anyone knows a better way than using usort I'm all > ears! > > Thanks, > Ash > http://www.ashleysheridan.co.uk > > > Try using an array to pass in the function: usort($array, array('ClassName', 'staticMethodName')); Adam -- Nephtali: PHP web framework that functions beautifully http://nephtaliproject.com
