array_udiff_assoc
This functionality is now implemented in the PEAR package PHP_Compat.
More information about using this function without upgrading your version of PHP can be found on the below link:
http://pear.php.net/package/PHP_Compat
array_udiff_uassoc
(PHP 5)
array_udiff_uassoc — Computes the difference of arrays with additional index check, compares data and indexes by a callback function
Descrierea
array array_udiff_uassoc
( array $array1
, array $array2
[, array $ ...
], callback $data_compare_func
, callback $key_compare_func
)
Computes the difference of arrays with additional index check, compares data and indexes by a callback function.
Note that the keys are used in the comparison unlike array_diff() and array_udiff().
Parametri
- array1
-
The first array.
- array2
-
The second array.
- data_compare_func
-
The callback comparison function.
The user supplied callback function is used for comparison. It must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.
The comparison of arrays' data is performed by using an user-supplied callback : data_compare_func . In this aspect the behaviour is opposite to the behaviour of array_diff_assoc() which uses internal function for comparison.
- key_compare_func
-
The comparison of keys (indices) is done also by the callback function key_compare_func . This behaviour is unlike what array_udiff_assoc() does, since the latter compares the indices by using an internal function.
Valorile întroarse
Returns an array containing all the values from array1 that are not present in any of the other arguments.
Exemple
Example #1 array_udiff_uassoc() example
<?php
class cr {
private $priv_member;
function cr($val)
{
$this->priv_member = $val;
}
static function comp_func_cr($a, $b)
{
if ($a->priv_member === $b->priv_member) return 0;
return ($a->priv_member > $b->priv_member)? 1:-1;
}
static function comp_func_key($a, $b)
{
if ($a === $b) return 0;
return ($a > $b)? 1:-1;
}
}
$a = array("0.1" => new cr(9), "0.5" => new cr(12), 0 => new cr(23), 1=> new cr(4), 2 => new cr(-15),);
$b = array("0.2" => new cr(9), "0.5" => new cr(22), 0 => new cr(3), 1=> new cr(4), 2 => new cr(-15),);
$result = array_udiff_uassoc($a, $b, array("cr", "comp_func_cr"), array("cr", "comp_func_key"));
print_r($result);
?>
Exemplul de mai sus va afişa:
Array
(
[0.1] => cr Object
(
[priv_member:private] => 9
)
[0.5] => cr Object
(
[priv_member:private] => 12
)
[0] => cr Object
(
[priv_member:private] => 23
)
)
In our example above you see the "1" => new cr(4) pair is present in both arrays and thus it is not in the output from the function. Keep in mind that you have to supply 2 callback functions.
Note
Notă: Please note that this function only checks one dimension of a n-dimensional array. Of course you can check deeper dimensions by using, for example, array_udiff_uassoc($array1[0], $array2[0], "data_compare_func", "key_compare_func");.
Vedeţi de asemenea
- array_diff() - Calculează diferenţa dintre tablouri
- array_diff_assoc() - Computes the difference of arrays with additional index check
- array_udiff() - Computes the difference of arrays by using a callback function for data comparison
- array_udiff_assoc() - Computes the difference of arrays with additional index check, compares data by a callback function
- array_intersect() - Computes the intersection of arrays
- array_intersect_assoc() - Computes the intersection of arrays with additional index check
- array_uintersect() - Computes the intersection of arrays, compares data by a callback function
- array_uintersect_assoc() - Computes the intersection of arrays with additional index check, compares data by a callback function
- array_uintersect_uassoc() - Computes the intersection of arrays with additional index check, compares data and indexes by a callback functions
add a note
User Contributed Notesarray_udiff_uassoc
aidan at php dot net
29-May-2004 05:06
29-May-2004 05:06