1--TEST--
2Test sscanf() function : usage variations - unexpected inputs for '$str' argument
3--FILE--
4<?php
5/* Prototype  : mixed sscanf  ( string $str  , string $format  [, mixed &$...  ] )
6 * Description: Parses input from a string according to a format
7 * Source code: ext/standard/string.c
8*/
9
10echo "*** Testing sscanf() function: with unexpected inputs for 'str' argument ***\n";
11
12//get an unset variable
13$unset_var = 'string_val';
14unset($unset_var);
15
16//defining a class
17class sample  {
18  public function __toString() {
19    return "sample object";
20  }
21}
22
23//getting the resource
24$file_handle = fopen(__FILE__, "r");
25
26// array with different values for $input
27$inputs =  array (
28
29		  // integer values
30/*1*/	  0,
31		  1,
32		  -2,
33 		  2147483647,
34		  -2147483648,
35
36		  // float values
37/*6*/	  10.5,
38		  -20.5,
39		  10.1234567e10,
40
41		  // array values
42/*9*/	  array(),
43		  array(0),
44		  array(1, 2),
45
46		  // boolean values
47/*12*/	  true,
48		  false,
49		  TRUE,
50		  FALSE,
51
52		  // null values
53/*16*/	  NULL,
54		  null,
55
56		  // objects
57/*18*/	  new sample(),
58
59		  // resource
60/*19*/	  $file_handle,
61
62		  // undefined variable
63/*20*/	  @$undefined_var,
64
65		  // unset variable
66/*21*/	  @$unset_var
67);
68
69//defining '$pad_length' argument
70$format = "%s";
71
72// loop through with each element of the $inputs array to test sscanf() function
73$count = 1;
74foreach($inputs as $input) {
75  echo "-- Iteration $count --\n";
76  var_dump( sscanf($input, $format) );
77  $count ++;
78}
79
80fclose($file_handle);  //closing the file handle
81
82?>
83===DONE===
84--EXPECTF--
85*** Testing sscanf() function: with unexpected inputs for 'str' argument ***
86-- Iteration 1 --
87array(1) {
88  [0]=>
89  string(1) "0"
90}
91-- Iteration 2 --
92array(1) {
93  [0]=>
94  string(1) "1"
95}
96-- Iteration 3 --
97array(1) {
98  [0]=>
99  string(2) "-2"
100}
101-- Iteration 4 --
102array(1) {
103  [0]=>
104  string(10) "2147483647"
105}
106-- Iteration 5 --
107array(1) {
108  [0]=>
109  string(11) "-2147483648"
110}
111-- Iteration 6 --
112array(1) {
113  [0]=>
114  string(4) "10.5"
115}
116-- Iteration 7 --
117array(1) {
118  [0]=>
119  string(5) "-20.5"
120}
121-- Iteration 8 --
122array(1) {
123  [0]=>
124  string(12) "101234567000"
125}
126-- Iteration 9 --
127
128Warning: sscanf() expects parameter 1 to be string, array given in %s on line %d
129NULL
130-- Iteration 10 --
131
132Warning: sscanf() expects parameter 1 to be string, array given in %s on line %d
133NULL
134-- Iteration 11 --
135
136Warning: sscanf() expects parameter 1 to be string, array given in %s on line %d
137NULL
138-- Iteration 12 --
139array(1) {
140  [0]=>
141  string(1) "1"
142}
143-- Iteration 13 --
144NULL
145-- Iteration 14 --
146array(1) {
147  [0]=>
148  string(1) "1"
149}
150-- Iteration 15 --
151NULL
152-- Iteration 16 --
153NULL
154-- Iteration 17 --
155NULL
156-- Iteration 18 --
157array(1) {
158  [0]=>
159  string(6) "sample"
160}
161-- Iteration 19 --
162
163Warning: sscanf() expects parameter 1 to be string, resource given in %s on line %d
164NULL
165-- Iteration 20 --
166NULL
167-- Iteration 21 --
168NULL
169===DONE===