Php array uintersect assoc () function

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(PHP 5)

array_uintersect_assoc -- Computes the intersection of arrays with additional index check, compares data by a callback function

Syntax

array array_uintersect_assoc ( array array1, array array2 [, array ..., callback data_compare_func] )

array_uintersect_assoc() 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_uintersect(). The data is compared by using a callback function.

Example 1. array_uintersect_assoc() example


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

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

The above example will output:

Array
(
    [a] => green
)

For comparison is used the 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.

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Php array uintersect assoc syntax tutorial

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