hphp/test/zend/good/ext-standard-array/krsort_variation3.php

   1 <?php
   2 /* Prototype  : bool krsort ( array &$array [, int $sort_flags] )
   3  * Description: Sort an array by key in reverse order, maintaining key to data correlation
   4  * Source code: ext/standard/array.c
   5 */
   6
   7 /*
   8  * Testing krsort() by providing array of integer/float/mixed values for $array argument
   9  * with following flag values:
  10  *  1.flag value as defualt
  11  *  2.SORT_REGULAR - compare items normally
  12  *  3.SORT_NUMERIC - compare items numerically
  13 */
  14
  15 echo "*** Testing krsort() : usage variations ***\n";
  16
  17 // diff. associative arrays to sort
  18 $various_arrays = array(
  19   // negative/posative integer key value array
  20   array(1 => 11, -2 => -11, 3 => 21, -4 => -21, 5 => 31, -6 => -31, 7 => 0, 8 => 41, -10 =>-41),
  21
  22   // float key values
  23   array(1.0 => 10.5, 0.2 => -10.5, 3.1 => 10.5e2, 4 => 10.6E-2, .5 => .5, 6 => .0001, -7 => -.1),
  24
  25   // mixed value array with different types of keys
  26   array(1 => .0001, 2 => .0021, -3 => -.01, 4 => -1, 5 => 0, 6 => .09, 7 => 2, -8 => -.9, 9 => 10.6E-2,
  27         -10 => -10.6E-2, 11 => 33)
  28 );
  29
  30 // set of possible flag values
  31 $flags = array("SORT_REGULAR" => SORT_REGULAR, "SORT_NUMERIC" => SORT_NUMERIC);
  32
  33 $count = 1;
  34 echo "\n-- Testing krsort() by supplying various integer/float arrays --\n";
  35
  36 // loop through to test krsort() with different arrays
  37 foreach ($various_arrays as $array) {
  38   echo "\n-- Iteration $count --\n";
  39
  40   echo "- With defualt sort flag -\n";
  41   $temp_array = $array;
  42   var_dump(krsort($temp_array) );
  43   var_dump($temp_array);
  44
  45   // loop through $flags array and call krsort() with all possible sort flag values
  46   foreach($flags as $key => $flag){
  47     echo "- Sort flag = $key -\n";
  48     $temp_array = $array;
  49     var_dump(krsort($temp_array, $flag) );
  50     var_dump($temp_array);
  51   }
  52   $count++;
  53 }
  54
  55 echo "Done\n";
  56 ?>