1--TEST-- 2strlen() function 3--INI-- 4precision = 12 5--FILE-- 6<?php 7/* returns the length of a given string */ 8 9echo "#### Basic operations and variations ####\n"; 10$strings = array( "Hello, World", 11 'Hello, World', 12 '!!Hello, World', 13 "??Hello, World", 14 "$@#%^&*!~,.:;?", 15 "123", 16 123, 17 "-1.2345", 18 -1.2344, 19 "", 20 " ", 21 "\0", 22 "\x000", // len = 2 23 "\xABC", // len = 2 24 "\0000", // len = 2 25 "0", 26 0, 27 "\t", // len = 1 28 '\t', // len = 2 29 TRUE, 30 FALSE, 31 "Hello, World\0", 32 "Hello\0World", 33 'Hello, World\0', 34 "Hello, World\n", 35 "Hello, World\r", 36 "Hello, World\t", 37 "Hello, World\\", 38 " ", 39 chr(128).chr(234).chr(65).chr(255).chr(256), 40 41 "abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$ 42 []{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\\\\ 43 abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$ 44 []{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\\\\ 45 abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$ 46 []{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\\\\ 47 abcdefghijklmnopqrstuvwxyz0123456789" 48 ); 49 50/* loop through to find the length of each string */ 51for($i=0; $i<count($strings); $i++) { 52 echo "String length of '$strings[$i]' is => "; 53 var_dump( strlen($strings[$i]) ); 54} 55 56 57 58echo "\n#### Testing miscellaneous inputs ####\n"; 59 60echo "--- Testing objects ---\n"; 61/* we get "Recoverable fatal error: saying Object of class could not be converted 62 to string" by default when an object is passed instead of string: 63The error can be avoided by choosing the __toString magix method as follows: */ 64 65class StringCapable { 66 function __toString() { 67 return "Hello, world"; 68 } 69} 70$obj_string = new StringCapable; 71 72var_dump(strlen("$obj_string")); 73 74 75echo "\n--- Testing arrays ---\n"; 76$str_arr = array("hello", "?world", "!$%**()%**[][[[&@#~!", array()); 77var_dump(strlen("$str_arr[1]")); 78var_dump(strlen("$str_arr[2]")); 79 80 81echo "\n--- Testing a longer and heredoc string ---\n"; 82$string = <<<EOD 83abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 84abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 85abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 86abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 87abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 88abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 89abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 90@#$%^&**&^%$#@!~:())))((((&&&**%$###@@@!!!~~~~@###$%^&* 91abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 92EOD; 93var_dump(strlen($string)); 94 95echo "\n--- Testing a heredoc null string ---\n"; 96$str = <<<EOD 97EOD; 98var_dump(strlen($str)); 99 100 101echo "\n--- Testing simple and complex syntax strings ---\n"; 102$str = 'world'; 103 104/* Simple syntax */ 105var_dump(strlen("$str")); 106var_dump(strlen("$str'S")); 107var_dump(strlen("$strS")); 108 109/* String with curly braces, complex syntax */ 110var_dump(strlen("${str}S")); 111var_dump(strlen("{$str}S")); 112 113echo "\n--- strlen for long float values ---\n"; 114/* Here two different outputs, which depends on the rounding value 115 before converting to string. Here Precision = 12 */ 116var_dump(strlen(10.55555555555555555555555555)); // len = 13 117var_dump(strlen(10.55555555595555555555555555)); // len = 12 118 119echo "\n--- Nested strlen() ---\n"; 120var_dump(strlen(strlen("Hello"))); // len=1 121 122echo "Done\n"; 123?> 124--EXPECTF-- 125#### Basic operations and variations #### 126String length of 'Hello, World' is => int(12) 127String length of 'Hello, World' is => int(12) 128String length of '!!Hello, World' is => int(14) 129String length of '??Hello, World' is => int(14) 130String length of '$@#%^&*!~,.:;?' is => int(14) 131String length of '123' is => int(3) 132String length of '123' is => int(3) 133String length of '-1.2345' is => int(7) 134String length of '-1.2344' is => int(7) 135String length of '' is => int(0) 136String length of ' ' is => int(1) 137String length of '%0' is => int(1) 138String length of '%00' is => int(2) 139String length of '�C' is => int(2) 140String length of '%00' is => int(2) 141String length of '0' is => int(1) 142String length of '0' is => int(1) 143String length of ' ' is => int(1) 144String length of '\t' is => int(2) 145String length of '1' is => int(1) 146String length of '' is => int(0) 147String length of 'Hello, World%0' is => int(13) 148String length of 'Hello%0World' is => int(11) 149String length of 'Hello, World\0' is => int(14) 150String length of 'Hello, World 151' is => int(13) 152String length of 'Hello, World 152' is => int(13) 153String length of 'Hello, World ' is => int(13) 154String length of 'Hello, World\' is => int(13) 155String length of ' ' is => int(14) 156String length of '��A�%0' is => int(5) 157String length of 'abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$ 158 []{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\ 159 abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$ 160 []{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\ 161 abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$ 162 []{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\ 163 abcdefghijklmnopqrstuvwxyz0123456789' is => int(495) 164 165#### Testing miscellaneous inputs #### 166--- Testing objects --- 167int(12) 168 169--- Testing arrays --- 170int(6) 171int(20) 172 173--- Testing a longer and heredoc string --- 174int(639) 175 176--- Testing a heredoc null string --- 177int(0) 178 179--- Testing simple and complex syntax strings --- 180int(5) 181int(7) 182 183Warning: Undefined variable $strS in %s on line %d 184int(0) 185int(6) 186int(6) 187 188--- strlen for long float values --- 189int(13) 190int(12) 191 192--- Nested strlen() --- 193int(1) 194Done 195
