--TEST-- Test uasort() function : basic functionality - duplicate values --FILE-- $value2) { return 1; } else return -1; } // increasing values $int_values1 = array(1, 1, 2, 2, 3, 3); echo "-- Numeric array with increasing values --\n"; var_dump( uasort($int_values1, 'cmp') ); var_dump($int_values1); // decreasing values $int_values2 = array(3, 3, 2, 2, 1, 1); echo "-- Numeric array with decreasing values --\n"; var_dump( uasort($int_values2, 'cmp') ); var_dump($int_values2); // increasing and decreasing values $int_values3 = array(1, 2, 3, 3, 2, 1); echo "-- Numeric array with increasing and decreasing values --\n"; var_dump( uasort($int_values3, 'cmp') ); var_dump($int_values3); echo "Done" ?> --EXPECT-- *** Testing uasort() : basic functionality with duplicate values *** -- Numeric array with increasing values -- bool(true) array(6) { [0]=> int(1) [1]=> int(1) [2]=> int(2) [3]=> int(2) [4]=> int(3) [5]=> int(3) } -- Numeric array with decreasing values -- bool(true) array(6) { [4]=> int(1) [5]=> int(1) [2]=> int(2) [3]=> int(2) [0]=> int(3) [1]=> int(3) } -- Numeric array with increasing and decreasing values -- bool(true) array(6) { [0]=> int(1) [5]=> int(1) [1]=> int(2) [4]=> int(2) [2]=> int(3) [3]=> int(3) } Done