--TEST-- Test uasort() function : usage variations - sort different numeric values --FILE-- $value2) { return 1; } else { return -1; } } echo "*** Testing uasort() : different numeric arrays as 'array_arg' ***\n"; // Int array $int_values = array(0 => 3, 1 => 2, 3 => 100, 4 => 150, 5 => 25, 6 => 350, 7 => 0, 8 => -3, 9 => -1200); echo "-- Sorting Integer array --\n"; var_dump( uasort($int_values, 'cmp_function') ); // expecting: bool(true) var_dump($int_values); // Octal array $octal_values = array(0 => 056, 1 => 023, 2 => 00, 3 => 015, 4 => -045, 5 => 01, 6 => -07); echo "-- Sorting Octal array --\n"; var_dump( uasort($octal_values, 'cmp_function') ); // expecting: bool(true) var_dump($octal_values); // Hexadecimal array $hex_values = array(0 => 0xAE, 1 => 0x2B, 2 => 0X10, 3 => -0xCF, 4 => 0X12, 5 => -0XF2); echo "-- Sorting Hex array --\n"; var_dump( uasort($hex_values, 'cmp_function') ); // expecting: bool(true) var_dump($hex_values); // Float array $float_values = array( 0 => 10.2, 1 => 2.4, 2 => -3.4, 3 => 0, 4 => 0.5, 5 => 7.3e3, 6 => -9.34E-2); echo "-- Sorting Float array --\n"; var_dump( uasort($float_values, 'cmp_function') ); // expecting: bool(true) var_dump($float_values); // empty array $empty_array = array(); echo "-- Sorting empty array --\n"; var_dump( uasort($empty_array, 'cmp_function') ); // expecting: bool(true) var_dump($empty_array); echo "Done" ?> --EXPECT-- *** Testing uasort() : different numeric arrays as 'array_arg' *** -- Sorting Integer array -- bool(true) array(9) { [9]=> int(-1200) [8]=> int(-3) [7]=> int(0) [1]=> int(2) [0]=> int(3) [5]=> int(25) [3]=> int(100) [4]=> int(150) [6]=> int(350) } -- Sorting Octal array -- bool(true) array(7) { [4]=> int(-37) [6]=> int(-7) [2]=> int(0) [5]=> int(1) [3]=> int(13) [1]=> int(19) [0]=> int(46) } -- Sorting Hex array -- bool(true) array(6) { [5]=> int(-242) [3]=> int(-207) [2]=> int(16) [4]=> int(18) [1]=> int(43) [0]=> int(174) } -- Sorting Float array -- bool(true) array(7) { [2]=> float(-3.4) [6]=> float(-0.0934) [3]=> int(0) [4]=> float(0.5) [1]=> float(2.4) [0]=> float(10.2) [5]=> float(7300) } -- Sorting empty array -- bool(true) array(0) { } Done