Edit report at https://bugs.php.net/bug.php?id=62724&edit=1
ID: 62724
User updated by: max at kriegt dot es
Reported by: max at kriegt dot es
Summary: isset returns false but array_key_exists returns
true (int keys)
Status: Not a bug
Type: Bug
Package: Arrays related
Operating System: Debian 6
PHP Version: 5.4.5
Block user comment: N
Private report: N
New Comment:
Hm - misinterpreted the function. :/
Previous Comments:
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[2012-08-02 09:46:01] [email protected]
What Keith said. :)
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[2012-08-02 09:43:38] keithm at aoeex dot com
This is not a bug. From the manual page on isset:
"Determine if a variable is set and is not NULL."
In your example, $foo[0] is null which is why isset returns false.
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[2012-08-02 09:36:54] max at kriegt dot es
Description:
------------
Hi,
recently realized that isset not returning the same result as array_key_exists
does for int-Keys.
Test script:
---------------
<?php
$foo = array(null);
var_dump( isset($foo[0]), array_key_exists(0, $foo) );
Expected result:
----------------
bool(true)
bool(true)
Actual result:
--------------
bool(false)
bool(true)
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Edit this bug report at https://bugs.php.net/bug.php?id=62724&edit=1