Re: Sorting 2D arrays

adamcharnock@btinternet.com ("Adam Charnock") writes: > Hi all. I know this is a common question and I have visited the php.net docs > about it, but how do I sort 2d arrays? I want to sort information by > $array[0][X]. How would I sort it by the values in "0" (the values are > numbers)? I have tried asort() but I haven't got the hang of it yet. The function you're after is usort: http://www.php.net/manual/html/function.usort.html function by_zeroth_element( $a, $b ) { return $a[0] < $b[0] ? -1 : $a[0] != $b[0]; } usort( $array, "by_zeroth_element" ); -- Robin Vickery............................................... Planet-Three, 3A West Point, Warple Way, London, W3 0RG, UK Email: robin@planet-three.net Phone: +44 (0)870 729 5444