| Package home | Report new bug | New search | Development Roadmap | Status: Open | Feedback | All | Closed Since Version 1.6.0a3 |
| Bug #6293 | array_intersect_key produces incorrect results with more than 2 arguments | ||
|---|---|---|---|
| Submitted: | 2005-12-19 23:20 UTC | ||
| From: | court at idstrom dot com | Assigned: | arpad |
| Status: | Closed | Package: | PHP_Compat |
| PHP Version: | 5.0.5 | OS: | Mac OSX 10.4.3 |
| Roadmaps: | 1.6.0a1 | ||
[2005-12-19 23:20 UTC] court at idstrom dot com
Description:
------------
PHP_Compat version 1.5
Test script:
---------------
<?
require_once('PHP/Compat/Function/array_intersect_key.php');
print_r(array_intersect_key(
array('a'=>1, 'b'=>2, 'c'=>3, 'd'=>4),
array('a'=>0, 'c'=>0),
array('a'=>0, 'd'=>4)
));
?>
Here's a correct (and slightly faster) implementation that requires php 4 >= 4.0.4 (for call_user_func_array)
function array_intersect_key() {
$args = func_get_args();
$arg_keys = array_map('array_keys', $args);
$result_keys = call_user_func_array('array_intersect', $arg_keys);
$first_arg = $args[0];
$result = array();
foreach($result_keys as $key) {
$result[$key] = $first_arg[$key];
}
return $result;
}
}
Expected result:
----------------
Array
(
[a] => 1
)
Actual result:
--------------
Array
(
[a] => 1
[c] => 3
[d] => 4
)
Comments
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