Re: Sorting an array

Sebastian Bergmann wrote: > > Hi, > > I have an array as follows: > > $array[ 0 ][ "frequency" ] = 10; > $array[ 0 ][ "array" ] = array( "test1", "test2" ); > $array[ 1 ][ "frequency" ] = 100; > $array[ 1 ][ "array" ] = array( "test3" ); > > Now I have to sort this array by descending frequency > <skip>... Hi! You can do this with 'usort(array array, function cmp_function)', which needs user-defined compare function. For example: <? /*---- our nice function ----*/ function my_comp ( $a, $b ) { if ($a['frequency'] == $b['frequency']) return 0; return ($a['frequency'] > $b['frequency']) ? -1 : 1; } /*---- sort array ----*/ usort( $array, my_comp ); ?> And 'usort()' does whole magic. See also PHP-manual: 'III. Array functions' -> 'usort'. Hope this helps. :-) -- Pavel a.k.a. Papi