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

   1 <?php
   2 /* Prototype  : array array_diff(array $arr1, array $arr2 [, array ...])
   3  * Description: Returns the entries of $arr1 that have values which are not present
   4  * in any of the others arguments.
   5  * Source code: ext/standard/array.c
   6  */
   7
   8 /*
   9  * Test basic functionality of array_diff
  10  */
  11
  12 echo "*** Testing array_diff() : basic functionality ***\n";
  13
  14 //Test indexed array with integers as elements
  15 $array_int1 = array (1, 2, 3, 4);
  16 $array_int2 = array (3, 4, 5, 6);
  17
  18 echo "-- Test indexed array with integers as elements --\n";
  19 var_dump(array_diff($array_int1, $array_int2));
  20 var_dump(array_diff($array_int2, $array_int1));
  21
  22
  23 //Test indexed array with strings as elements
  24 $array_string1 = array ('one', 'two', 'three', 'four');
  25 $array_string2 = array ('three', 'four', 'five', 'six');
  26
  27 echo "-- Test indexed array with strings as elements --\n";
  28 var_dump(array_diff($array_string1, $array_string2));
  29 var_dump(array_diff($array_string2, $array_string1));
  30
  31 //Test associative array with strings as keys and integers as elements
  32 $array_assoc_int1 = array ('one' => 1, 'two' => 2, 'three' => 3, 'four' => 4);
  33 $array_assoc_int2 = array ('three' => 3, 'four' => 4, 'five' => 5, 'six' => 6);
  34
  35 echo "-- Test associative array with strings as keys and integers as elements --\n";
  36 var_dump(array_diff($array_assoc_int1, $array_assoc_int2));
  37 var_dump(array_diff($array_assoc_int2, $array_assoc_int1));
  38
  39 //Test associative array with strings as keys and elements
  40 $array_assoc_str1 = array ('one' => 'un', 'two' => 'deux', 'three' => 'trois', 'four' => 'quatre');
  41 $array_assoc_str2 = array ('three' => 'trois', 'four' => 'quatre', 'five' => 'cinq', 'six' => 'six');
  42
  43 echo "-- Test associative array with strings as keys and integers as elements --\n";
  44 var_dump(array_diff($array_assoc_str1, $array_assoc_str2));
  45 var_dump(array_diff($array_assoc_str2, $array_assoc_str1));
  46
  47 echo "-- Test array_diff with more than 2 arguments --\n";
  48 var_dump(array_diff($array_int1, $array_int2, $array_string1, $array_string2));
  49
  50 echo "Done";
  51 ?>