Re: Using usort in a class

On Thu, 2010-04-22 at 14:26 -0400, Adam Richardson wrote: > On Thu, Apr 22, 2010 at 2:12 PM, Ashley Sheridan > <ash@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 > Thanks! I literally just found that answer as your reply came through. It's a bit of a facepalm moment here right now, as I'm ashamed to say that the answer was on the manual pages all along, which I'd failed to read properly :-/ Thanks, Ash http://www.ashleysheridan.co.uk