array_intersect_ukey

Computes the intersection of arrays using a callback function on the keys for comparison (PHP 5 >= 5.1.0)
array array_intersect_ukey ( array array1, array array2 [, array ..., callback key_compare_func] )

Example 252. array_intersect_ukey() example

<?php
function key_compare_func($key1, $key2)

{

    if ($key1 == $key2)

        return 0;

    else if ($key1 > $key2)

        return 1;

    else

        return -1;

}

$array1 = array('blue'  => 1, 'red'  => 2, 'green'  => 3, 'purple' => 4);
$array2 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan'   => 8);

var_dump(array_intersect_ukey($array1, $array2, 'key_compare_func'));
?>

The above example will output:

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array(2) {

  ["blue"]=>

  int(1)

  ["green"]=>

  int(3)

}

array_intersect_ukey

Computes the intersection of arrays using a callback function on the keys for comparison (PHP 5 >= 5.1.0) array array_intersect_ukey ( array array1, array array2 [, array ..., callback key_compare_func] )

Example 252. array_intersect_ukey() example

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Computes the intersection of arrays using a callback function on the keys for comparison (PHP 5 >= 5.1.0)
array array_intersect_ukey ( array array1, array array2 [, array ..., callback key_compare_func] )