PYTHON array_intersect_uassoc

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PHP array_intersect_uassoc

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array_intersect_uassoc

(PHP 5)

array_intersect_uassoc — Computes the intersection of arrays with additional index check, compares indexes by a callback function

Description

array array_intersect_uassoc ( array $array1 , array $array2 [, array $ ... ], callback $key_compare_func )

array_intersect_uassoc() returns an array containing all the values of array1 that are present in all the arguments. Note that the keys are used in the comparison unlike in array_intersect().

The index comparison is done by a user supplied callback function. 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.

Parameters

array1

Initial array for comparison of the arrays.

array2

First array to compare keys against.

array

Variable list of array arguments to compare values against.

key_compare_func

User supplied callback function to do the comparison.

Return Values

Returns the values of array1 whose values exist in all of the arguments.

Examples

Example #1 array_intersect_uassoc() example

<?php
$array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");
$array2 = array("a" => "GREEN", "B" => "brown", "yellow", "red");

print_r(array_intersect_uassoc($array1, $array2, "strcasecmp"));
?>

The above example will output:

Array
(
    [b] => brown
)

See Also

Array Functions
PHP Manual