mirror of
https://github.com/php/php-src.git
synced 2024-09-27 12:57:26 +00:00
304 lines
4.9 KiB
PHP
304 lines
4.9 KiB
PHP
--TEST--
|
|
Test is_string() function
|
|
--FILE--
|
|
<?php
|
|
/* Prototype: bool is_string ( mixed $var );
|
|
* Description: Finds whether the given variable is a string
|
|
*/
|
|
|
|
echo "*** Testing is_string() with valid string values ***\n";
|
|
// different valid strings
|
|
|
|
/* string created using Heredoc (<<<) */
|
|
$heredoc_string = <<<EOT
|
|
This is string defined
|
|
using heredoc.
|
|
EOT;
|
|
/* heredoc string with only numerics */
|
|
$heredoc_numeric_string = <<<EOT
|
|
123456 3993
|
|
4849 string
|
|
EOT;
|
|
/* null heardoc string */
|
|
$heredoc_empty_string = <<<EOT
|
|
EOT;
|
|
$heredoc_null_string = <<<EOT
|
|
NULL
|
|
EOT;
|
|
|
|
$strings = array(
|
|
"",
|
|
" ",
|
|
'',
|
|
' ',
|
|
"string",
|
|
'string',
|
|
"NULL",
|
|
'null',
|
|
"FALSE",
|
|
'true',
|
|
"\x0b",
|
|
"\0",
|
|
'\0',
|
|
'\060',
|
|
"\070",
|
|
"0x55F",
|
|
"055",
|
|
"@#$#$%%$^^$%^%^$^&",
|
|
$heredoc_string,
|
|
$heredoc_numeric_string,
|
|
$heredoc_empty_string,
|
|
$heredoc_null_string
|
|
);
|
|
/* loop to check that is_string() recognizes different
|
|
strings, expected output bool(true) */
|
|
$loop_counter = 1;
|
|
foreach ($strings as $string ) {
|
|
echo "-- Iteration $loop_counter --\n"; $loop_counter++;
|
|
var_dump( is_string($string) );
|
|
}
|
|
|
|
echo "\n*** Testing is_string() on non string values ***\n";
|
|
|
|
// get a resource type variable
|
|
$fp = fopen (__FILE__, "r");
|
|
$dfp = opendir ( dirname(__FILE__) );
|
|
|
|
// unset vars
|
|
$unset_string1 = "string";
|
|
$unset_string2 = 'string';
|
|
$unset_heredoc = <<<EOT
|
|
this is heredoc string
|
|
EOT;
|
|
// unset the vars
|
|
unset($unset_string1, $unset_string2, $unset_heredoc);
|
|
|
|
// other types in a array
|
|
$not_strings = array (
|
|
/* integers */
|
|
0,
|
|
1,
|
|
-1,
|
|
-0,
|
|
543915,
|
|
-5322,
|
|
0x0,
|
|
0x1,
|
|
0x55F,
|
|
-0xCCF,
|
|
0123,
|
|
-0654,
|
|
00,
|
|
01,
|
|
|
|
/* floats */
|
|
0.0,
|
|
1.0,
|
|
-1.0,
|
|
10.0000000000000000005,
|
|
.5e6,
|
|
-.5E7,
|
|
.5E+8,
|
|
-.5e+90,
|
|
1e5,
|
|
-1e5,
|
|
1E5,
|
|
-1E7,
|
|
|
|
/* objects */
|
|
new stdclass,
|
|
|
|
/* resources */
|
|
$fp,
|
|
$dfp,
|
|
|
|
/* arrays */
|
|
array(),
|
|
array(0),
|
|
array(1),
|
|
array(NULL),
|
|
array(null),
|
|
array("string"),
|
|
array(true),
|
|
array(TRUE),
|
|
array(false),
|
|
array(FALSE),
|
|
array(1,2,3,4),
|
|
array(1 => "One", "two" => 2),
|
|
|
|
/* undefined and unset vars */
|
|
@$unset_string1,
|
|
@$unset_string2,
|
|
@$unset_heredoc,
|
|
@$undefined_var
|
|
);
|
|
/* loop through the $not_strings to see working of
|
|
is_string() on non string types, expected output bool(false) */
|
|
$loop_counter = 1;
|
|
foreach ($not_strings as $type ) {
|
|
echo "-- Iteration $loop_counter --\n"; $loop_counter++;
|
|
var_dump( is_string($type) );
|
|
}
|
|
|
|
echo "\n*** Testing error conditions ***\n";
|
|
//Zero argument
|
|
var_dump( is_string() );
|
|
|
|
//arguments more than expected
|
|
var_dump( is_string("string", "test") );
|
|
|
|
echo "Done\n";
|
|
|
|
// close the resources used
|
|
fclose($fp);
|
|
closedir($dfp);
|
|
|
|
?>
|
|
--EXPECTF--
|
|
*** Testing is_string() with valid string values ***
|
|
-- Iteration 1 --
|
|
bool(true)
|
|
-- Iteration 2 --
|
|
bool(true)
|
|
-- Iteration 3 --
|
|
bool(true)
|
|
-- Iteration 4 --
|
|
bool(true)
|
|
-- Iteration 5 --
|
|
bool(true)
|
|
-- Iteration 6 --
|
|
bool(true)
|
|
-- Iteration 7 --
|
|
bool(true)
|
|
-- Iteration 8 --
|
|
bool(true)
|
|
-- Iteration 9 --
|
|
bool(true)
|
|
-- Iteration 10 --
|
|
bool(true)
|
|
-- Iteration 11 --
|
|
bool(true)
|
|
-- Iteration 12 --
|
|
bool(true)
|
|
-- Iteration 13 --
|
|
bool(true)
|
|
-- Iteration 14 --
|
|
bool(true)
|
|
-- Iteration 15 --
|
|
bool(true)
|
|
-- Iteration 16 --
|
|
bool(true)
|
|
-- Iteration 17 --
|
|
bool(true)
|
|
-- Iteration 18 --
|
|
bool(true)
|
|
-- Iteration 19 --
|
|
bool(true)
|
|
-- Iteration 20 --
|
|
bool(true)
|
|
-- Iteration 21 --
|
|
bool(true)
|
|
-- Iteration 22 --
|
|
bool(true)
|
|
|
|
*** Testing is_string() on non string values ***
|
|
-- Iteration 1 --
|
|
bool(false)
|
|
-- Iteration 2 --
|
|
bool(false)
|
|
-- Iteration 3 --
|
|
bool(false)
|
|
-- Iteration 4 --
|
|
bool(false)
|
|
-- Iteration 5 --
|
|
bool(false)
|
|
-- Iteration 6 --
|
|
bool(false)
|
|
-- Iteration 7 --
|
|
bool(false)
|
|
-- Iteration 8 --
|
|
bool(false)
|
|
-- Iteration 9 --
|
|
bool(false)
|
|
-- Iteration 10 --
|
|
bool(false)
|
|
-- Iteration 11 --
|
|
bool(false)
|
|
-- Iteration 12 --
|
|
bool(false)
|
|
-- Iteration 13 --
|
|
bool(false)
|
|
-- Iteration 14 --
|
|
bool(false)
|
|
-- Iteration 15 --
|
|
bool(false)
|
|
-- Iteration 16 --
|
|
bool(false)
|
|
-- Iteration 17 --
|
|
bool(false)
|
|
-- Iteration 18 --
|
|
bool(false)
|
|
-- Iteration 19 --
|
|
bool(false)
|
|
-- Iteration 20 --
|
|
bool(false)
|
|
-- Iteration 21 --
|
|
bool(false)
|
|
-- Iteration 22 --
|
|
bool(false)
|
|
-- Iteration 23 --
|
|
bool(false)
|
|
-- Iteration 24 --
|
|
bool(false)
|
|
-- Iteration 25 --
|
|
bool(false)
|
|
-- Iteration 26 --
|
|
bool(false)
|
|
-- Iteration 27 --
|
|
bool(false)
|
|
-- Iteration 28 --
|
|
bool(false)
|
|
-- Iteration 29 --
|
|
bool(false)
|
|
-- Iteration 30 --
|
|
bool(false)
|
|
-- Iteration 31 --
|
|
bool(false)
|
|
-- Iteration 32 --
|
|
bool(false)
|
|
-- Iteration 33 --
|
|
bool(false)
|
|
-- Iteration 34 --
|
|
bool(false)
|
|
-- Iteration 35 --
|
|
bool(false)
|
|
-- Iteration 36 --
|
|
bool(false)
|
|
-- Iteration 37 --
|
|
bool(false)
|
|
-- Iteration 38 --
|
|
bool(false)
|
|
-- Iteration 39 --
|
|
bool(false)
|
|
-- Iteration 40 --
|
|
bool(false)
|
|
-- Iteration 41 --
|
|
bool(false)
|
|
-- Iteration 42 --
|
|
bool(false)
|
|
-- Iteration 43 --
|
|
bool(false)
|
|
-- Iteration 44 --
|
|
bool(false)
|
|
-- Iteration 45 --
|
|
bool(false)
|
|
|
|
*** Testing error conditions ***
|
|
|
|
Warning: is_string() expects exactly 1 parameter, 0 given in %s on line %d
|
|
bool(false)
|
|
|
|
Warning: is_string() expects exactly 1 parameter, 2 given in %s on line %d
|
|
bool(false)
|
|
Done
|