1--TEST--
2Test prev() function : error conditions - Pass incorrect number of arguments
3--FILE--
4<?php
5/* Prototype  : mixed prev(array $array_arg)
6 * Description: Move array argument's internal pointer to the previous element and return it
7 * Source code: ext/standard/array.c
8 */
9
10/*
11 * Pass incorrect number of arguments to prev() to test behaviour
12 */
13
14echo "*** Testing prev() : error conditions ***\n";
15
16// Zero arguments
17echo "\n-- Testing prev() function with Zero arguments --\n";
18var_dump( prev() );
19
20//Test prev with one more than the expected number of arguments
21echo "\n-- Testing prev() function with more than expected no. of arguments --\n";
22$array_arg = array(1, 2);
23$extra_arg = 10;
24var_dump( prev($array_arg, $extra_arg) );
25?>
26===DONE===
27--EXPECTF--
28*** Testing prev() : error conditions ***
29
30-- Testing prev() function with Zero arguments --
31
32Warning: prev() expects exactly 1 parameter, 0 given in %s on line %d
33NULL
34
35-- Testing prev() function with more than expected no. of arguments --
36
37Warning: prev() expects exactly 1 parameter, 2 given in %s on line %d
38NULL
39===DONE===
40