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+--TEST--
+Test krsort() function : usage variations - sort integer/float values
+--FILE--
+<?php
+/* Prototype : bool krsort ( array &$array [, int $sort_flags] )
+ * Description: Sort an array by key in reverse order, maintaining key to data correlation
+ * Source code: ext/standard/array.c
+*/
+
+/*
+ * Testing krsort() by providing array of integer/float/mixed values for $array argument
+ * with following flag values:
+ * 1.flag value as defualt
+ * 2.SORT_REGULAR - compare items normally
+ * 3.SORT_NUMERIC - compare items numerically
+*/
+
+echo "*** Testing krsort() : usage variations ***\n";
+
+// diff. associative arrays to sort
+$various_arrays = array(
+ // negative/posative integer key value array
+ array(1 => 11, -2 => -11, 3 => 21, -4 => -21, 5 => 31, -6 => -31, 7 => 0, 8 => 41, -10 =>-41),
+
+ // float key values
+ array(1.0 => 10.5, 0.2 => -10.5, 3.1 => 10.5e2, 4 => 10.6E-2, .5 => .5, 6 => .0001, -7 => -.1),
+
+ // mixed value array with different types of keys
+ array(1 => .0001, 2 => .0021, -3 => -.01, 4 => -1, 5 => 0, 6 => .09, 7 => 2, -8 => -.9, 9 => 10.6E-2,
+ -10 => -10.6E-2, 11 => 33)
+);
+
+// set of possible flag values
+$flags = array("SORT_REGULAR" => SORT_REGULAR, "SORT_NUMERIC" => SORT_NUMERIC);
+
+$count = 1;
+echo "\n-- Testing krsort() by supplying various integer/float arrays --\n";
+
+// loop through to test krsort() with different arrays
+foreach ($various_arrays as $array) {
+ echo "\n-- Iteration $count --\n";
+
+ echo "- With defualt sort flag -\n";
+ $temp_array = $array;
+ var_dump(krsort($temp_array) );
+ var_dump($temp_array);
+
+ // loop through $flags array and call krsort() with all possible sort flag values
+ foreach($flags as $key => $flag){
+ echo "- Sort flag = $key -\n";
+ $temp_array = $array;
+ var_dump(krsort($temp_array, $flag) );
+ var_dump($temp_array);
+ }
+ $count++;
+}
+
+echo "Done\n";
+?>
+--EXPECTF--
+*** Testing krsort() : usage variations ***
+
+-- Testing krsort() by supplying various integer/float arrays --
+
+-- Iteration 1 --
+- With defualt sort flag -
+bool(true)
+array(9) {
+ [8]=>
+ int(41)
+ [7]=>
+ int(0)
+ [5]=>
+ int(31)
+ [3]=>
+ int(21)
+ [1]=>
+ int(11)
+ [-2]=>
+ int(-11)
+ [-4]=>
+ int(-21)
+ [-6]=>
+ int(-31)
+ [-10]=>
+ int(-41)
+}
+- Sort flag = SORT_REGULAR -
+bool(true)
+array(9) {
+ [8]=>
+ int(41)
+ [7]=>
+ int(0)
+ [5]=>
+ int(31)
+ [3]=>
+ int(21)
+ [1]=>
+ int(11)
+ [-2]=>
+ int(-11)
+ [-4]=>
+ int(-21)
+ [-6]=>
+ int(-31)
+ [-10]=>
+ int(-41)
+}
+- Sort flag = SORT_NUMERIC -
+bool(true)
+array(9) {
+ [8]=>
+ int(41)
+ [7]=>
+ int(0)
+ [5]=>
+ int(31)
+ [3]=>
+ int(21)
+ [1]=>
+ int(11)
+ [-2]=>
+ int(-11)
+ [-4]=>
+ int(-21)
+ [-6]=>
+ int(-31)
+ [-10]=>
+ int(-41)
+}
+
+-- Iteration 2 --
+- With defualt sort flag -
+bool(true)
+array(6) {
+ [6]=>
+ float(0.0001)
+ [4]=>
+ float(0.106)
+ [3]=>
+ float(1050)
+ [1]=>
+ float(10.5)
+ [0]=>
+ float(0.5)
+ [-7]=>
+ float(-0.1)
+}
+- Sort flag = SORT_REGULAR -
+bool(true)
+array(6) {
+ [6]=>
+ float(0.0001)
+ [4]=>
+ float(0.106)
+ [3]=>
+ float(1050)
+ [1]=>
+ float(10.5)
+ [0]=>
+ float(0.5)
+ [-7]=>
+ float(-0.1)
+}
+- Sort flag = SORT_NUMERIC -
+bool(true)
+array(6) {
+ [6]=>
+ float(0.0001)
+ [4]=>
+ float(0.106)
+ [3]=>
+ float(1050)
+ [1]=>
+ float(10.5)
+ [0]=>
+ float(0.5)
+ [-7]=>
+ float(-0.1)
+}
+
+-- Iteration 3 --
+- With defualt sort flag -
+bool(true)
+array(11) {
+ [11]=>
+ int(33)
+ [9]=>
+ float(0.106)
+ [7]=>
+ int(2)
+ [6]=>
+ float(0.09)
+ [5]=>
+ int(0)
+ [4]=>
+ int(-1)
+ [2]=>
+ float(0.0021)
+ [1]=>
+ float(0.0001)
+ [-3]=>
+ float(-0.01)
+ [-8]=>
+ float(-0.9)
+ [-10]=>
+ float(-0.106)
+}
+- Sort flag = SORT_REGULAR -
+bool(true)
+array(11) {
+ [11]=>
+ int(33)
+ [9]=>
+ float(0.106)
+ [7]=>
+ int(2)
+ [6]=>
+ float(0.09)
+ [5]=>
+ int(0)
+ [4]=>
+ int(-1)
+ [2]=>
+ float(0.0021)
+ [1]=>
+ float(0.0001)
+ [-3]=>
+ float(-0.01)
+ [-8]=>
+ float(-0.9)
+ [-10]=>
+ float(-0.106)
+}
+- Sort flag = SORT_NUMERIC -
+bool(true)
+array(11) {
+ [11]=>
+ int(33)
+ [9]=>
+ float(0.106)
+ [7]=>
+ int(2)
+ [6]=>
+ float(0.09)
+ [5]=>
+ int(0)
+ [4]=>
+ int(-1)
+ [2]=>
+ float(0.0021)
+ [1]=>
+ float(0.0001)
+ [-3]=>
+ float(-0.01)
+ [-8]=>
+ float(-0.9)
+ [-10]=>
+ float(-0.106)
+}
+Done