1--TEST--
2Test array_keys() function (error conditions)
3--FILE--
4<?php
5
6echo "\n*** Testing error conditions ***";
7var_dump(array_keys(100));
8var_dump(array_keys("string"));
9var_dump(array_keys(new stdclass));  // object
10var_dump(array_keys());  // Zero arguments
11var_dump(array_keys(array(), "", TRUE, 100));  // args > expected
12var_dump(array_keys(array(1,2,3, array() => array())));  // (W)illegal offset
13
14echo "Done\n";
15?>
16--EXPECTF--
17*** Testing error conditions ***
18Warning: array_keys() expects parameter 1 to be array, integer given in %s on line %d
19NULL
20
21Warning: array_keys() expects parameter 1 to be array, string given in %s on line %d
22NULL
23
24Warning: array_keys() expects parameter 1 to be array, object given in %s on line %d
25NULL
26
27Warning: array_keys() expects at least 1 parameter, 0 given in %s on line %d
28NULL
29
30Warning: array_keys() expects at most 3 parameters, 4 given in %s on line %d
31NULL
32
33Warning: Illegal offset type in %s on line %d
34array(3) {
35  [0]=>
36  int(0)
37  [1]=>
38  int(1)
39  [2]=>
40  int(2)
41}
42Done
43