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1.1       misho       1: --TEST--
                      2: Test array_diff() function : usage variations - array containing duplicate keys and values
                      3: --FILE--
                      4: <?php
                      5: /* Prototype  : array array_diff(array $arr1, array $arr2 [, array ...])
                      6:  * Description: Returns the entries of $arr1 that have values which are not 
                      7:  * present in any of the others arguments. 
                      8:  * Source code: ext/standard/array.c
                      9:  */
                     10: 
                     11: /*
                     12:  * Test that array_diff behaves as expected for comparing:
                     13:  * 1. the order of the array
                     14:  * 2. duplicate values
                     15:  * 3. duplicate key names
                     16:  */
                     17: 
                     18: echo "*** Testing array_diff() : usage variations ***\n";
                     19: 
                     20: $array_index = array('a', 'b', 'c', 0 => 'd', 'b');   //duplicate key (0), duplicate value (b)
                     21: $array_assoc = array ('2' => 'c',   //same key=>value pair, different order
                     22:                       '1' => 'b',
                     23:                       '0' => 'a', 
                     24:                       'b' => '3',   //key and value from array_index swapped 
                     25:                       'c' => 2);    //same as above, using integer
                     26: 
                     27: var_dump(array_diff($array_index, $array_assoc));
                     28: var_dump(array_diff($array_assoc, $array_index));
                     29: 
                     30: echo "Done";
                     31: ?>
                     32: --EXPECTF--
                     33: *** Testing array_diff() : usage variations ***
                     34: array(1) {
                     35:   [0]=>
                     36:   string(1) "d"
                     37: }
                     38: array(3) {
                     39:   [0]=>
                     40:   string(1) "a"
                     41:   ["b"]=>
                     42:   string(1) "3"
                     43:   ["c"]=>
                     44:   int(2)
                     45: }
                     46: Done