1--TEST--
2Test function fstat() by substituting argument 1 with emptyUnsetUndefNull values.
3--FILE--
4<?php
5$unset_var = 10;
6unset($unset_var);
7
8$variation_array = array(
9  'unset var' => @$unset_var,
10  'undefined var' => @$undefined_var,
11  'empty string DQ' => "",
12  'empty string SQ' => '',
13  'uppercase NULL' => NULL,
14  'lowercase null' => null,
15  );
16
17
18foreach ( $variation_array as $var ) {
19  var_dump(fstat( $var  ) );
20}
21?>
22===DONE===
23--EXPECTF--
24
25Warning: fstat() expects parameter 1 to be resource, null given in %s on line %d
26bool(false)
27
28Warning: fstat() expects parameter 1 to be resource, null given in %s on line %d
29bool(false)
30
31Warning: fstat() expects parameter 1 to be resource, string given in %s on line %d
32bool(false)
33
34Warning: fstat() expects parameter 1 to be resource, string given in %s on line %d
35bool(false)
36
37Warning: fstat() expects parameter 1 to be resource, null given in %s on line %d
38bool(false)
39
40Warning: fstat() expects parameter 1 to be resource, null given in %s on line %d
41bool(false)
42===DONE===