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--TEST--
Test array_diff() function : usage variations - array containing duplicate keys and values
--FILE--
<?php
/* Prototype : array array_diff(array $arr1, array $arr2 [, array ...])
* Description: Returns the entries of $arr1 that have values which are not
* present in any of the others arguments.
* Source code: ext/standard/array.c
*/
/*
* Test that array_diff behaves as expected for comparing:
* 1. the order of the array
* 2. duplicate values
* 3. duplicate key names
*/
echo "*** Testing array_diff() : usage variations ***\n";
$array_index = array('a', 'b', 'c', 0 => 'd', 'b'); //duplicate key (0), duplicate value (b)
$array_assoc = array ('2' => 'c', //same key=>value pair, different order
'1' => 'b',
'0' => 'a',
'b' => '3', //key and value from array_index swapped
'c' => 2); //same as above, using integer
var_dump(array_diff($array_index, $array_assoc));
var_dump(array_diff($array_assoc, $array_index));
echo "Done";
?>
--EXPECTF--
*** Testing array_diff() : usage variations ***
array(1) {
[0]=>
string(1) "d"
}
array(3) {
[0]=>
string(1) "a"
["b"]=>
string(1) "3"
["c"]=>
int(2)
}
Done
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