note 42535 added to function.usort

The array_alternate_multisort function written by robert below doesn't work. There are several bugs in the code and it doesn't work when sorting by multiple keys because the order of the first key isn't taken into account when sorting by the second key and so on. Also, because robert uses strcasecmp the algorithm doesn't work properly with floats or other variable types. Here's the improved version: <?php function SortArray() { $arguments = func_get_args(); $array = $arguments[0]; $code = ''; for ($c = 1; $c < count($arguments); $c += 2) { if (in_array($arguments[$c + 1], array("ASC", "DESC"))) { $code .= 'if ($a["'.$arguments[$c].'"] != $b["'.$arguments[$c].'"]) {'; if ($arguments[$c + 1] == "ASC") { $code .= 'return ($a["'.$arguments[$c].'"] < $b["'.$arguments[$c].'"] ? -1 : 1); }'; } else { $code .= 'return ($a["'.$arguments[$c].'"] < $b["'.$arguments[$c].'"] ? 1 : -1); }'; } } } $code .= 'return 0;'; $compare = create_function('$a,$b', $code); usort($array, $compare); return $array; } ?> ---- Manual Page -- http://www.php.net/manual/en/function.usort.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+42535 Delete -- http://master.php.net/manage/user-notes.php?action=delete+42535&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+42535&report=yes Search -- http://master.php.net/manage/user-notes.php