1--TEST--
2Test isset() function : basic functionality
3--FILE--
4<?php
5/* Prototype  : bool isset  ( mixed $var  [, mixed $var  [,  $...  ]] )
6 * Description:  Determine if a variable is set and is not NULL
7 */
8
9class foo {}
10
11echo "*** Testing isset() : basic functionality ***\n";
12
13$i = 10;
14$f = 10.5;
15$s = "Hello";
16$a = array(1,2,3,4,5);
17$b = true;
18$n = NULL;
19$obj = new foo;
20$res = fopen(__FILE__, "r");
21
22echo "Integer test: " . (isset($i) ? "YES": "NO")  . "\n";
23echo "Float test: " . (isset($f) ? "YES": "NO") . "\n";
24echo "String test: " . (isset($s) ? "YES": "NO") . "\n";
25echo "Array test: " . (isset($a) ? "YES": "NO") . "\n";
26echo "Boolean test: " . (isset($b) ? "YES": "NO") . "\n";
27echo "Null test: " . (isset($n) ? "YES": "NO") . "\n";
28echo "Object test: " . (isset($obj) ? "YES": "NO") . "\n";
29echo "Resource test: " . (isset($res) ? "YES": "NO") . "\n";
30
31echo "\n\nUnset the variables\n\n";
32unset($i, $f, $s, $a, $b, $n, $obj, $res);
33
34echo "Integer test: " . (isset($i) ? "YES": "NO")  . "\n";
35echo "Float test: " . (isset($f) ? "YES": "NO") . "\n";
36echo "String test: " . (isset($s) ? "YES": "NO") . "\n";
37echo "Array test: " . (isset($a) ? "YES": "NO") . "\n";
38echo "Boolean test: " . (isset($b) ? "YES": "NO") . "\n";
39echo "Null test: " . (isset($n) ? "YES": "NO") . "\n";
40echo "Object test: " . (isset($obj) ? "YES": "NO") . "\n";
41echo "Resource test: " . (isset($res) ? "YES": "NO") . "\n";
42?>
43===DONE===
44--EXPECT--
45*** Testing isset() : basic functionality ***
46Integer test: YES
47Float test: YES
48String test: YES
49Array test: YES
50Boolean test: YES
51Null test: NO
52Object test: YES
53Resource test: YES
54
55
56Unset the variables
57
58Integer test: NO
59Float test: NO
60String test: NO
61Array test: NO
62Boolean test: NO
63Null test: NO
64Object test: NO
65Resource test: NO
66===DONE===