Re: More efficient methods?

At 23:11 21.05.2003, Chris said: --------------------[snip]-------------------- >I am writing a bit of code that takes a blogroll RSS file and parses it into >an array for some sorting and categorized output. Being the pseudo- >programmer that I am, I am wondering if I am missing some ways to make my >code more efficient. > >.... > >I also have a more complex sorting question. Once I get the array populated >it looks like this: >$roll[0][type] => foo >$roll[0][link] => http://google.com >$roll[1][type] => bar >$roll[1][link] => http://chris.com >$roll[2][type] => foo >$roll[2][link] => http://php.net > >... > >Because the array is multidimensional, I currently: > >1) create a second array of types (X) and their associated index >2) copy that array to another array (Y) and use array_unique to get one of >each category >3) loop over (Y) and for each cat loop over (X) and output the proper links > >This gives me the code below, but it seems really roundabout, and of course >sorting the links themselves alphabetically looks about impossible... > --------------------[snip]-------------------- Why don't you use usort, using your own comparison function? http://www.php.net/manual/en/function.usort.php Example: function compare_roll($rolla, $rollb) { if ($rslt = strcasecmp($rolla['type'], $rollb['type'])) return $rslt; return strcasecmp($rolla['link'], $rollb['link']); } // $roll is unsorted here usort($roll, 'compare_roll'); // $roll is sorted after this line -- >O Ernest E. Vogelsinger (\) ICQ #13394035 ^ http://www.vogelsinger.at/