note 33946 modified in function.array-diff-assoc by aidan
| From: | aidan@php.net | Date: | Tue, 08 Jun 2004 14:18:42 +0000 |
| Subject: | note 33946 modified in function.array-diff-assoc by aidan | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-70458@lists.php.net to get a copy of this message | ||
[anders dot carlsson at mds dot mdh dot se]
The user contributed array_diff_assoc_recursive function is good except for the original
array_diff_assoc always (?) returns an array.
Therefore I propose that $difference is initially set to an empty array (and the array is always
returned), and the comparison against FALSE is replaced by count($new_diff). At least that's
the modifications I made to run it they way my code expects.
---------------------------------------------
The following will recursively do an array_diff_assoc, which will calculate differences on a
multi-dimensional level. (Forgive me if the braces do not line up, the note script did not like my
tabs, and gave me trouble on some spaces.)
<?php
function array_diff_assoc_recursive($array1, $array2)
{
foreach($array1 as $key => $value)
{
if(is_array($value))
{
if(!is_array($array2[$key]))
{
$difference[$key] = $value;
}
else
{
$new_diff = array_diff_assoc_recursive($value, $array2[$key]);
if($new_diff != FALSE)
{
$difference[$key] = $new_diff;
}
}
}
elseif(!isset($array2[$key]) || $array2[$key] != $value)
{
$difference[$key] = $value;
}
}
return !isset($difference) ? 0 : $difference;
}
?>
--was--
The following will recursively do an array_diff_assoc, which will calculate differences on a
multi-dimensional level. (Forgive me if the braces do not line up, the note script did not like my
tabs, and gave me trouble on some spaces.)
<?php
function array_diff_assoc_recursive($array1, $array2)
{
foreach($array1 as $key => $value)
{
if(is_array($value))
{
if(!is_array($array2[$key]))
{
$difference[$key] = $value;
}
else
{
$new_diff = array_diff_assoc_recursive($value, $array2[$key]);
if($new_diff != FALSE)
{
$difference[$key] = $new_diff;
}
}
}
elseif(!isset($array2[$key]) || $array2[$key] != $value)
{
$difference[$key] = $value;
}
}
return !isset($difference) ? 0 : $difference;
}
?>
http://www.php.net/manual/en/function.array-diff-assoc.php