#21918 [Ver]: strange behaviour of mixed type in array-keys
ID: 21918
Updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
Status: Verified
Bug Type: Scripting Engine problem
Operating System: Linux
PHP Version: 4.3.0/5.0.0
New Comment:
Related to bug #8325
Previous Comments:
[2003-01-29 02:22:57] [EMAIL PROTECTED]
I relied on http://www.php.net/manual/en/language.types.array.php
it states:
A key is either an integer or a string. If a key is the standard
representation of an integer, it will be interpreted as such (i.e. 8
will be interpreted as 8, while 08 will be interpreted as 08).
so the keys should be casted to int, or it is a documentation-bug, or
-1 is not a standard representation of an integer.
[2003-01-29 00:57:01] [EMAIL PROTECTED]
?php
$a = array(
'-1' = '-1',
'0' = '0',
'1' = '1',
);
var_dump($a);
?
Output:
array(3) {
[-1]=
string(2) -1
[0]=
string(1) 0
[1]=
string(1) 1
}
(the '0' and '1' indexes are converted to integers..)
Not sure if this is actually expected behaviour. :)
[2003-01-29 00:39:34] [EMAIL PROTECTED]
The bug can be that it shouldn't cast positive numbers to string and
not that it should cast negative numbers to string.
[2003-01-29 00:31:41] [EMAIL PROTECTED]
Verified under PHP 4.3.0 with Zend Engine v1.3.0 and PHP 5.0.0-dev with
Zend Engine v2.0.0-dev.
It looks like '-1' isn't casted to int as it should.
[2003-01-28 04:58:13] [EMAIL PROTECTED]
?php
$a = array(-1=1,
'-1'=2,
0=3,
'0'=4,
1=5,
'1'=6
);
print_r($a);
?
produces:
Array
(
[-1] = 1
[-1] = 2
[0] = 4
[1] = 6
)
foreach (array_keys($a) as $key) echo $key, ': ', gettype($key), \n;
produces:
-1: integer
-1: string
0: integer
1: integer
so it seems strings containing negative integers do not get converted
to
integers automagically but positive integers are.
--
Edit this bug report at http://bugs.php.net/?id=21918edit=1
#21918 [Ver]: strange behaviour of mixed type in array-keys
ID: 21918 Updated by: [EMAIL PROTECTED] Reported By: [EMAIL PROTECTED] Status: Verified Bug Type: Arrays related Operating System: Linux PHP Version: 4.3.0/5.0.0 New Comment: The bug can be that it shouldn't cast positive numbers to string and not that it should cast negative numbers to string. Previous Comments: [2003-01-29 00:31:41] [EMAIL PROTECTED] Verified under PHP 4.3.0 with Zend Engine v1.3.0 and PHP 5.0.0-dev with Zend Engine v2.0.0-dev. It looks like '-1' isn't casted to int as it should. [2003-01-28 04:58:13] [EMAIL PROTECTED] ?php $a = array(-1=1, '-1'=2, 0=3, '0'=4, 1=5, '1'=6 ); print_r($a); ? produces: Array ( [-1] = 1 [-1] = 2 [0] = 4 [1] = 6 ) foreach (array_keys($a) as $key) echo $key, ': ', gettype($key), \n; produces: -1: integer -1: string 0: integer 1: integer so it seems strings containing negative integers do not get converted to integers automagically but positive integers are. -- Edit this bug report at http://bugs.php.net/?id=21918edit=1
#21918 [Ver]: strange behaviour of mixed type in array-keys
ID: 21918
Updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
Status: Verified
Bug Type: Arrays related
Operating System: Linux
PHP Version: 4.3.0/5.0.0
New Comment:
?php
$a = array(
'-1' = '-1',
'0' = '0',
'1' = '1',
);
var_dump($a);
?
Output:
array(3) {
[-1]=
string(2) -1
[0]=
string(1) 0
[1]=
string(1) 1
}
(the '0' and '1' indexes are converted to integers..)
Not sure if this is actually expected behaviour. :)
Previous Comments:
[2003-01-29 00:39:34] [EMAIL PROTECTED]
The bug can be that it shouldn't cast positive numbers to string and
not that it should cast negative numbers to string.
[2003-01-29 00:31:41] [EMAIL PROTECTED]
Verified under PHP 4.3.0 with Zend Engine v1.3.0 and PHP 5.0.0-dev with
Zend Engine v2.0.0-dev.
It looks like '-1' isn't casted to int as it should.
[2003-01-28 04:58:13] [EMAIL PROTECTED]
?php
$a = array(-1=1,
'-1'=2,
0=3,
'0'=4,
1=5,
'1'=6
);
print_r($a);
?
produces:
Array
(
[-1] = 1
[-1] = 2
[0] = 4
[1] = 6
)
foreach (array_keys($a) as $key) echo $key, ': ', gettype($key), \n;
produces:
-1: integer
-1: string
0: integer
1: integer
so it seems strings containing negative integers do not get converted
to
integers automagically but positive integers are.
--
Edit this bug report at http://bugs.php.net/?id=21918edit=1
