1--TEST--
2Test str_pad() function : usage variations - unexpected inputs for '$pad_string' argument
3--FILE--
4<?php
5/* Prototype  : string str_pad  ( string $input  , int $pad_length  [, string $pad_string  [, int $pad_type  ]] )
6 * Description: Pad a string to a certain length with another string
7 * Source code: ext/standard/string.c
8*/
9
10/* Test str_pad() function: with unexpected inputs for '$pad_string'
11 *  and expected type for '$input' and '$pad_length'
12*/
13
14echo "*** Testing str_pad() function: with unexpected inputs for 'pad_string' argument ***\n";
15
16//get an unset variable
17$unset_var = 'string_val';
18unset($unset_var);
19
20//defining a class
21class sample  {
22  public function __toString() {
23    return "sample object";
24  }
25}
26
27//getting the resource
28$file_handle = fopen(__FILE__, "r");
29
30// array with different values for $input
31$pad_strings =  array (
32
33		  // integer values
34/*1*/	  0,
35		  1,
36		  -2,
37		  2147483647,
38		  -2147483648,
39
40		  // float values
41/*6*/	  10.5,
42		  -20.5,
43		  10.1234567e10,
44
45		  // array values
46/*9*/	  array(),
47		  array(0),
48		  array(1, 2),
49
50		  // boolean values
51/*12*/	  true,
52		  false,
53		  TRUE,
54		  FALSE,
55
56		  // null vlaues
57/*16*/	  NULL,
58		  null,
59
60		  // objects
61/*18*/	  new sample(),
62
63		  // resource
64/*19*/	  $file_handle,
65
66		  // undefined variable
67/*20*/	  @$undefined_var,
68
69		  // unset variable
70/*21*/	  @$unset_var
71);
72
73//defining '$input' argument
74$input = "Test string";
75$pad_length = 20;
76
77// loop through with each element of the $pad_strings array to test str_pad() function
78$count = 1;
79foreach($pad_strings as $pad_string) {
80  echo "-- Iteration $count --\n";
81  var_dump( str_pad($input, $pad_length, $pad_string) );
82  $count ++;
83}
84
85fclose($file_handle);  //closing the file handle
86
87?>
88===DONE===
89--EXPECTF--
90*** Testing str_pad() function: with unexpected inputs for 'pad_string' argument ***
91-- Iteration 1 --
92string(20) "Test string000000000"
93-- Iteration 2 --
94string(20) "Test string111111111"
95-- Iteration 3 --
96string(20) "Test string-2-2-2-2-"
97-- Iteration 4 --
98string(20) "Test string214748364"
99-- Iteration 5 --
100string(20) "Test string-21474836"
101-- Iteration 6 --
102string(20) "Test string10.510.51"
103-- Iteration 7 --
104string(20) "Test string-20.5-20."
105-- Iteration 8 --
106string(20) "Test string101234567"
107-- Iteration 9 --
108
109Warning: str_pad() expects parameter 3 to be string, array given in %s on line %d
110NULL
111-- Iteration 10 --
112
113Warning: str_pad() expects parameter 3 to be string, array given in %s on line %d
114NULL
115-- Iteration 11 --
116
117Warning: str_pad() expects parameter 3 to be string, array given in %s on line %d
118NULL
119-- Iteration 12 --
120string(20) "Test string111111111"
121-- Iteration 13 --
122
123Warning: str_pad(): Padding string cannot be empty in %s on line %d
124NULL
125-- Iteration 14 --
126string(20) "Test string111111111"
127-- Iteration 15 --
128
129Warning: str_pad(): Padding string cannot be empty in %s on line %d
130NULL
131-- Iteration 16 --
132
133Warning: str_pad(): Padding string cannot be empty in %s on line %d
134NULL
135-- Iteration 17 --
136
137Warning: str_pad(): Padding string cannot be empty in %s on line %d
138NULL
139-- Iteration 18 --
140string(20) "Test stringsample ob"
141-- Iteration 19 --
142
143Warning: str_pad() expects parameter 3 to be string, resource given in %s on line %d
144NULL
145-- Iteration 20 --
146
147Warning: str_pad(): Padding string cannot be empty in %s on line %d
148NULL
149-- Iteration 21 --
150
151Warning: str_pad(): Padding string cannot be empty in %s on line %d
152NULL
153===DONE===
154