hphp/test/zend/good/ext/standard/tests/array/array_intersect_ukey_variation7.php

   1 <?hh
   2 /* Prototype  : array array_intersect_ukey(array arr1, array arr2 [, array ...], callback key_compare_func)
   3  * Description: Computes the intersection of arrays using a callback function on the keys for comparison.
   4  * Source code: ext/standard/array.c
   5  */
   6
   7 //Call back function
   8 function key_compare_func($key1, $key2)
   9 {
  10     if ($key1 == $key2)
  11         return 0;
  12     else
  13         return ($key1 > $key2)? 1:-1;
  14 }
  15 <<__EntryPoint>> function main(): void {
  16 echo "*** Testing array_intersect_ukey() : usage variation ***\n";
  17
  18 //Initialize variables
  19 $arr1_string_int = array('0' => '1', '1' => '2');
  20 $arr2_string_int = array('0' => '1', '1' => '3');
  21 $arr1_string_float = array('0.00' => '1.00', '1.00' => '2.00');
  22 $arr2_string_float = array('0.00' => '1.00', '1.00' => '3.00');
  23
  24 echo "\n-- Result of strings containing integers intersection --\n";
  25 var_dump( array_intersect_ukey($arr1_string_int, $arr2_string_int, 'key_compare_func') );
  26
  27 echo "\n-- Result of strings containing floating points intersection --\n";
  28 var_dump( array_intersect_ukey($arr1_string_float, $arr2_string_float, 'key_compare_func') );
  29
  30 echo "\n-- Result of strings containing integers and strings containing floating points intersection --\n";
  31 var_dump( array_intersect_ukey($arr1_string_int, $arr2_string_float, 'key_compare_func') );
  32 echo "===DONE===\n";
  33 }