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
Descrizione
array array_udiff_uassoc
( array
$array1
, array $array2
[, array $ ...
], callable $data_compare_func
, callable $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().
Elenco dei parametri
-
array1 -
The first array.
-
array2 -
The second array.
-
data_compare_func -
La funzione di confronto deve restituire un intero minore, uguale o maggiore di zero se il primo argomento è considerato essere minore, uguale o maggiore del secondo.
-
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.
Valori restituiti
Returns an array containing all the values from
array1 that are not present in any of the other
arguments.
Esempi
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);
?>
Il precedente esempio visualizzerà:
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
Nota: 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");.
Vedere anche:
- array_diff() - Calcola la differenza di due o più array
- array_diff_assoc() - Calcola la differenza tra due o più array con un ulteriore controllo sull'indice
- 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() - Calcola l'intersezione degli arrays
- array_intersect_assoc() - Calcola l'intersezione degli array con un ulteriore controllo sugli indici
- 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
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User Contributed Notes
array_udiff_uassoc - [1 notes]
aidan at php dot net ¶
8 years ago