PHP: array_splice_assoc() helper

gistfile1.php

<?php

function array_splice_assoc($array, $key, $replacement = array())
{
    // Get numeric offset of the key to remove
    $offset = array_search($key, array_keys($array));

    if (!is_int($offset)) return $array;

    unset($array[$key]);

    return array_slice($array, 0, $offset, true)
        + (array) $replacement
        + array_slice($array, $offset, null, true);

    return $array;
}