1--TEST--
2Test array_intersect_ukey() function : error conditions
3--FILE--
4<?php
5/* Prototype  : array array_intersect_ukey(array arr1, array arr2 [, array ...], callback key_compare_func)
6 * Description: Computes the intersection of arrays using a callback function on the keys for comparison.
7 * Source code: ext/standard/array.c
8 */
9
10echo "*** Testing array_intersect_ukey() : error conditions ***\n";
11
12//Initialise arguments
13$array1 = array('blue'  => 1, 'red'  => 2, 'green'  => 3, 'purple' => 4);
14$array2 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan'   => 8);
15
16//Call back function
17function key_compare_func($key1, $key2)
18{
19    if ($key1 == $key2)
20        return 0;
21    else
22        return ($key1 > $key2)? 1:-1;
23}
24
25//Test array_intersect_ukey with one more than the expected number of arguments
26echo "\n-- Testing array_intersect_ukey() function with more than expected no. of arguments --\n";
27$extra_arg = 10;
28var_dump( array_intersect_ukey($array1, $array2, 'key_compare_func',$extra_arg) );
29
30// Testing array_intersect_ukey with one less than the expected number of arguments
31echo "\n-- Testing array_intersect_ukey() function with less than expected no. of arguments --\n";
32var_dump( array_intersect_ukey($array1, $array2) );
33
34// Testing array_intersect_ukey with no arguments
35echo "\n-- Testing array_intersect_ukey() function with no arguments --\n";
36var_dump( array_intersect_ukey() );
37?>
38===DONE===
39--EXPECTF--
40*** Testing array_intersect_ukey() : error conditions ***
41
42-- Testing array_intersect_ukey() function with more than expected no. of arguments --
43
44Warning: array_intersect_ukey() expects parameter 4 to be a valid callback, no array or string given in %s on line %d
45NULL
46
47-- Testing array_intersect_ukey() function with less than expected no. of arguments --
48
49Warning: array_intersect_ukey(): at least 3 parameters are required, 2 given in %s on line %d
50NULL
51
52-- Testing array_intersect_ukey() function with no arguments --
53
54Warning: array_intersect_ukey(): at least 3 parameters are required, 0 given in %s on line %d
55NULL
56===DONE===