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PHP : Function Reference : Array Functions : array_udiff_uassoc

array_udiff_uassoc

Computes the difference of arrays with additional index check, compares data and indexes by a callback function (PHP 5)
array array_udiff_uassoc ( array array1, array array2 [, array ..., callback data_compare_func, callback key_compare_func] )

Example 281. array_udiff_uassoc() example

<?php
class cr {
   private
$priv_member;
   function
cr($val)
   {
       
$this->priv_member = $val;
   }

   function
comp_func_cr($a, $b)
   {
       if (
$a->priv_member === $b->priv_member) return 0;
       return (
$a->priv_member > $b->priv_member)? 1:-1;
   }

   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);
?>

The above example will output:

Array
(
   [0.1] => cr Object
       (
           [priv_member:private] => 9
       )

   [0.5] => cr Object
       (
           [priv_member:private] => 12
       )

   [0] => cr Object
       (
           [priv_member:private] => 23
       )
)

Code Examples / Notes » array_udiff_uassoc

aidan

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


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array_chunk
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array_diff_uassoc
array_diff_ukey
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array_intersect_assoc
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