1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
--TEST--
Test filesize() function: usage variations - file mode & holes in file
--SKIPIF--
<?php
if (substr(PHP_OS, 0, 3) == 'WIN') {
die('skip only valid for Linux');
}
--FILE--
<?php
/*
Prototype : int filesize ( string $filename );
Description : Returns the size of the file in bytes, or FALSE
(and generates an error of level E_WARNING) in case of an error.
*/
/* Testing filesize() with data written using different file modes and by creating holes in file */
$file_path = dirname(__FILE__);
echo "*** Testing filesize(): usage variations ***\n";
echo "\n*** Testing filesize() with data written using different file modes and by creating holes in file ***\n";
$filename = $file_path."/filesize_variation4.tmp";
$string = "Test 2 test the filesize() fn, with data containing all the types like !@@##$%^&*():<>?|~+!;',.\][{}(special) cha
rs, 12345(numeric) chars, and \n(newline char), \t(tab), \0, \r and so on........\0";
echo "-- opening the file in 'w' mode and get the size --\n";
$file_handle = fopen($filename, "w");
var_dump( strlen($string) ); //strlen of the string
fwrite($file_handle, $string);
fclose($file_handle);
var_dump( filesize($filename) ); //size of the file = strlen of string
clearstatcache();
echo "-- opening the file in 'wt' mode and get the size --\n";
$file_handle = fopen($filename, "wt");
var_dump( strlen($string) ); //strlen of the string = 191 bytes
fwrite($file_handle, $string);
fclose($file_handle);
var_dump( filesize($filename) ); //size of the file = strlen of string = 191 bytes
clearstatcache();
echo "-- opening the file in 'a' mode, adding data and checking the file --\n";
$file_handle = fopen($filename, "a");
fwrite($file_handle, "Hello, world");
fclose($file_handle);
var_dump( filesize($filename) ); //203 bytes
clearstatcache();
echo "-- opening the file in 'at' mode, adding data and checking the file --\n";
$file_handle = fopen($filename, "at");
fwrite($file_handle, "Hello, world\n");
fclose($file_handle);
var_dump( filesize($filename) ); //216 bytes
clearstatcache();
echo "-- creating a hole and checking the size --\n";
$file_handle = fopen($filename, "a");
var_dump( ftruncate($file_handle, 220) ); //creating 4 bytes of hole
fclose($file_handle);
var_dump( filesize($filename) ); //220 bytes
clearstatcache();
echo "-- writing data after hole and checking the size --\n";
$file_handle = fopen($filename, "a");
fwrite($file_handle, "Hello\0"); //wrting 6 bytes of data
fclose($file_handle);
var_dump( filesize($filename) ); //226 bytes
clearstatcache();
echo "-- opening the existing file in write mode --\n";
fclose( fopen($filename, "w") );
var_dump( filesize($filename) ); //0 bytes
clearstatcache();
echo "-- with empty file --\n";
$filename = dirname(__FILE__)."/filesize_variation4_empty.tmp";
fclose( fopen($filename, "w") );
var_dump( filesize($filename) ); //0 bytes
echo "*** Done ***\n";
?>
--CLEAN--
<?php
$file_path = dirname(__FILE__);
unlink($file_path."/filesize_variation4.tmp");
unlink($file_path."/filesize_variation4_empty.tmp");
?>
--EXPECTF--
*** Testing filesize(): usage variations ***
*** Testing filesize() with data written using different file modes and by creating holes in file ***
-- opening the file in 'w' mode and get the size --
int(192)
int(192)
-- opening the file in 'wt' mode and get the size --
int(192)
int(192)
-- opening the file in 'a' mode, adding data and checking the file --
int(204)
-- opening the file in 'at' mode, adding data and checking the file --
int(217)
-- creating a hole and checking the size --
bool(true)
int(220)
-- writing data after hole and checking the size --
int(226)
-- opening the existing file in write mode --
int(0)
-- with empty file --
int(0)
*** Done ***
|
