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--TEST--
Test strncmp() function : usage variations - different lengths(all types)
--FILE--
<?php
/* Prototype : int strncmp ( string $str1, string $str2, int $len );
* Description: Binary safe case-sensitive string comparison of the first n characters
* Source code: Zend/zend_builtin_functions.c
*/
/* Test strncmp() function with the length as all types, and giving the same strings for 'str1' and 'str2' */
echo "*** Test strncmp() function: by supplying all types for 'len' ***\n";
/* definition of required variables */
$str1 = "Hello, World\n";
$str2 = "Hello, World\n";
/* get an unset variable */
$unset_var = 'string_val';
unset($unset_var);
/* get resource handle */
$file_handle = fopen(__FILE__, "r");
/* declaring a class */
class sample {
public function __toString() {
return "object";
}
}
/* array with different values */
$lengths = array (
/* integer values */
0,
1,
12345,
/* float values */
10.5,
10.5e10,
10.6E-10,
.5,
/* hexadecimal values */
0x12,
/* octal values */
012,
01.2,
/* array values */
array(),
array(0),
array(1),
array(1, 2),
array('color' => 'red', 'item' => 'pen'),
/* boolean values */
true,
false,
TRUE,
FALSE,
/* nulls */
NULL,
null,
/* empty string */
"",
'',
/* undefined variable */
$undefined_var,
/* unset variable */
$unset_var,
/* resource */
$file_handle,
/* object */
new sample()
);
/* loop through each element of the array and check the working of strncmp() */
$counter = 1;
for($index = 0; $index < count($lengths); $index ++) {
$len = $lengths[$index];
echo "-- Iteration $counter --\n";
var_dump( strncmp($str1, $str2, $len) );
$counter ++;
}
fclose($file_handle);
echo "*** Done ***\n";
?>
--EXPECTF--
*** Test strncmp() function: by supplying all types for 'len' ***
Notice: Undefined variable: undefined_var in %s on line %d
Notice: Undefined variable: unset_var in %s on line %d
-- Iteration 1 --
int(0)
-- Iteration 2 --
int(0)
-- Iteration 3 --
int(0)
-- Iteration 4 --
int(0)
-- Iteration 5 --
int(0)
-- Iteration 6 --
int(0)
-- Iteration 7 --
int(0)
-- Iteration 8 --
int(0)
-- Iteration 9 --
int(0)
-- Iteration 10 --
int(0)
-- Iteration 11 --
Warning: strncmp() expects parameter 3 to be long, array given in%s on line %d
NULL
-- Iteration 12 --
Warning: strncmp() expects parameter 3 to be long, array given in%s on line %d
NULL
-- Iteration 13 --
Warning: strncmp() expects parameter 3 to be long, array given in%s on line %d
NULL
-- Iteration 14 --
Warning: strncmp() expects parameter 3 to be long, array given in%s on line %d
NULL
-- Iteration 15 --
Warning: strncmp() expects parameter 3 to be long, array given in%s on line %d
NULL
-- Iteration 16 --
int(0)
-- Iteration 17 --
int(0)
-- Iteration 18 --
int(0)
-- Iteration 19 --
int(0)
-- Iteration 20 --
int(0)
-- Iteration 21 --
int(0)
-- Iteration 22 --
Warning: strncmp() expects parameter 3 to be long, string given in%s on line %d
NULL
-- Iteration 23 --
Warning: strncmp() expects parameter 3 to be long, string given in%s on line %d
NULL
-- Iteration 24 --
int(0)
-- Iteration 25 --
int(0)
-- Iteration 26 --
Warning: strncmp() expects parameter 3 to be long, resource given in%s on line %d
NULL
-- Iteration 27 --
Warning: strncmp() expects parameter 3 to be long, object given in%s on line %d
NULL
*** Done ***