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-- 125Deprecated: Using ${var} in strings is deprecated, use {$var} instead in %s on line %d 126#### Basic operations and variations #### 127String length of 'Hello, World' is => int(12) 128String length of 'Hello, World' is => int(12) 129String length of '!!Hello, World' is => int(14) 130String length of '??Hello, World' is => int(14) 131String length of '$@#%^&*!~,.:;?' is => int(14) 132String length of '123' is => int(3) 133String length of '123' is => int(3) 134String length of '-1.2345' is => int(7) 135String length of '-1.2344' is => int(7) 136String length of '' is => int(0) 137String length of ' ' is => int(1) 138String length of '%0' is => int(1) 139String length of '%00' is => int(2) 140String length of '�C' is => int(2) 141String length of '%00' is => int(2) 142String length of '0' is => int(1) 143String length of '0' is => int(1) 144String length of ' ' is => int(1) 145String length of '\t' is => int(2) 146String length of '1' is => int(1) 147String length of '' is => int(0) 148String length of 'Hello, World%0' is => int(13) 149String length of 'Hello%0World' is => int(11) 150String length of 'Hello, World\0' is => int(14) 151String length of 'Hello, World 152' is => int(13) 153String length of 'Hello, World 153' is => int(13) 154String length of 'Hello, World ' is => int(13) 155String length of 'Hello, World\' is => int(13) 156String length of ' ' is => int(14) 157String length of '��A�%0' is => int(5) 158String length of 'abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$ 159 []{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\ 160 abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$ 161 []{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\ 162 abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$ 163 []{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\ 164 abcdefghijklmnopqrstuvwxyz0123456789' is => int(495) 165 166#### Testing miscellaneous inputs #### 167--- Testing objects --- 168int(12) 169 170--- Testing arrays --- 171int(6) 172int(20) 173 174--- Testing a longer and heredoc string --- 175int(639) 176 177--- Testing a heredoc null string --- 178int(0) 179 180--- Testing simple and complex syntax strings --- 181int(5) 182int(7) 183 184Warning: Undefined variable $strS in %s on line %d 185int(0) 186int(6) 187int(6) 188 189--- strlen for long float values --- 190int(13) 191int(12) 192 193--- Nested strlen() --- 194int(1) 195Done 196
