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238 lines
6.9 KiB
PHP
238 lines
6.9 KiB
PHP
--TEST--
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strlen() function
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--INI--
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precision = 12
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--FILE--
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<?php
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/* returns the length of a given string */
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echo "#### Basic operations and variations ####\n";
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$strings = array( "Hello, World",
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'Hello, World',
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'!!Hello, World',
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"??Hello, World",
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"$@#%^&*!~,.:;?",
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"123",
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123,
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"-1.2345",
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-1.2344,
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NULL,
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"",
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" ",
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"\0",
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"\x000", // len = 2
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"\xABC", // len = 2
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"\0000", // len = 2
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"0",
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0,
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"\t", // len = 1
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'\t', // len = 2
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TRUE,
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FALSE,
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"Hello, World\0",
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"Hello\0World",
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'Hello, World\0',
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"Hello, World\n",
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"Hello, World\r",
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"Hello, World\t",
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"Hello, World\\",
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" ",
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chr(128).chr(234).chr(65).chr(255).chr(256),
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"abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$
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[]{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\\\\
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abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$
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[]{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\\\\
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abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$
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[]{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\\\\
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abcdefghijklmnopqrstuvwxyz0123456789"
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);
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/* loop through to find the length of each string */
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for($i=0; $i<count($strings); $i++) {
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echo "String length of '$strings[$i]' is => ";
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var_dump( strlen($strings[$i]) );
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}
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echo "\n#### Testing Miscelleneous inputs ####\n";
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echo "--- Testing objects ---\n";
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/* we get "Catchable fatal error: saying Object of class could not be converted
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to string" by default when an object is passed instead of string:
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The error can be avoided by chosing the __toString magix method as follows: */
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class string {
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function __toString() {
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return "Hello, world";
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}
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}
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$obj_string = new string;
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var_dump(strlen("$obj_string"));
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echo "\n--- Testing arrays ---\n";
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$str_arr = array("hello", "?world", "!$%**()%**[][[[&@#~!", array());
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var_dump(strlen($str_arr));
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var_dump(strlen("$str_arr[1]"));
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var_dump(strlen("$str_arr[2]"));
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echo "\n--- Testing Resources ---\n";
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$filename1 = "dummy.txt";
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$file1 = fopen($filename1, "w"); // creating new file
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/* getting resource type for file handle */
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$string1 = get_resource_type($file1);
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$string2 = (int)get_resource_type($file1); // converting stream type to int
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/* $string1 is of "stream" type */
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var_dump(strlen($string1)); // int(6)
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/* $string2 holds a value of "int(0)" */
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var_dump(strlen($string2)); // int(1)
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fclose($file1); // closing the file "dummy.txt"
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unlink("$filename1"); // deletes "dummy.txt"
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echo "\n--- Testing a longer and heredoc string ---\n";
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$string = <<<EOD
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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@#$%^&**&^%$#@!~:())))((((&&&**%$###@@@!!!~~~~@###$%^&*
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abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789
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EOD;
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var_dump(strlen($string));
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echo "\n--- Testing a heredoc null string ---\n";
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$str = <<<EOD
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EOD;
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var_dump(strlen($str));
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echo "\n--- Testing simple and complex syntax strings ---\n";
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$str = 'world';
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/* Simple syntax */
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var_dump(strlen("$str"));
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var_dump(strlen("$str'S"));
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var_dump(strlen("$strS"));
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/* String with curly braces, complex syntax */
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var_dump(strlen("${str}S"));
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var_dump(strlen("{$str}S"));
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echo "\n--- strlen for long float values ---\n";
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/* Here two different outputs, which depends on the rounding value
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before converting to string. Here Precision = 12 */
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var_dump(strlen(10.55555555555555555555555555)); // len = 13
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var_dump(strlen(10.55555555595555555555555555)); // len = 12
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echo "\n--- Nested strlen() ---\n";
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var_dump(strlen(strlen("Hello"))); // len=1
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echo "\n#### error conditions ####";
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/* Zero arguments */
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strlen();
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/* Greater number of args than expected */
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strlen("string1", "string2");
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strlen("", "");
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echo "Done\n";
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?>
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--EXPECTF--
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#### Basic operations and variations ####
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String length of 'Hello, World' is => int(12)
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String length of 'Hello, World' is => int(12)
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String length of '!!Hello, World' is => int(14)
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String length of '??Hello, World' is => int(14)
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String length of '$@#%^&*!~,.:;?' is => int(14)
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String length of '123' is => int(3)
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String length of '123' is => int(3)
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String length of '-1.2345' is => int(7)
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String length of '-1.2344' is => int(7)
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String length of '' is => int(0)
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String length of '' is => int(0)
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String length of ' ' is => int(1)
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String length of ' ' is => int(1)
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String length of ' 0' is => int(2)
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String length of '<27>C' is => int(2)
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String length of ' 0' is => int(2)
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String length of '0' is => int(1)
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String length of '0' is => int(1)
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String length of ' ' is => int(1)
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String length of '\t' is => int(2)
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String length of '1' is => int(1)
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String length of '' is => int(0)
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String length of 'Hello, World ' is => int(13)
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String length of 'Hello World' is => int(11)
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String length of 'Hello, World\0' is => int(14)
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String length of 'Hello, World
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' is => int(13)
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String length of 'Hello, World
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' is => int(13)
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String length of 'Hello, World ' is => int(13)
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String length of 'Hello, World\' is => int(13)
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String length of ' ' is => int(14)
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String length of '<27><>A<EFBFBD> ' is => int(5)
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String length of 'abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$
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[]{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\
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abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$
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[]{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\
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abcdefghijklmnopqrstuvwxyz0123456789~!@#$%^&*()_+=|?><-;:$
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[]{}{{{}}}[[[[]][]]]***&&&^^%$###@@!!@#$%&^&**/////|\\\
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abcdefghijklmnopqrstuvwxyz0123456789' is => int(495)
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#### Testing Miscelleneous inputs ####
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--- Testing objects ---
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int(12)
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--- Testing arrays ---
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Notice: Array to string conversion in %s on line %d
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int(5)
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int(6)
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int(20)
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--- Testing Resources ---
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int(6)
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int(1)
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--- Testing a longer and heredoc string ---
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int(639)
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--- Testing a heredoc null string ---
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int(0)
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--- Testing simple and complex syntax strings ---
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int(5)
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int(7)
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Notice: Undefined variable: strS in %s on line %d
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int(0)
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int(6)
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int(6)
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--- strlen for long float values ---
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int(13)
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int(12)
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--- Nested strlen() ---
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int(1)
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#### error conditions ####
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Warning: Wrong parameter count for strlen() in %s on line %d
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Warning: Wrong parameter count for strlen() in %s on line %d
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Warning: Wrong parameter count for strlen() in %s on line %d
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Done
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