PHP Helper Functions anyKeyValueOr

anyKeyValueOr.php

<?php
function anyKeyValueOr(array|object|null $haystack, array $acceptableKeys = [], $defaultValue = null)
{
    if (is_null($haystack) or empty($acceptableKeys))
    {
        return $defaultValue;
    }

    $isObject = is_object($haystack);
    $isArray = is_array($haystack);
    foreach ($acceptableKeys as $key)
    {
        if($isObject && isset($haystack->{$key}))
        {
            return $haystack->{$key};
        }
        else if($isArray && isset($haystack[$key]))
        {
            return $haystack[$key];
        }
    }
    return $defaultValue;
}

$testArray = ["a" => 1, "b" => 2, "c" => 3];
$testObject = (object)$testArray;

it("Should return false", anyKeyValueOr($testArray, ["z"], false) === false);
it("Should return null", anyKeyValueOr($testArray, ["z"]) === null);
it("Should return 1", anyKeyValueOr($testArray, ["a"]) === 1);
it("Should return false", anyKeyValueOr($testObject, ["z"], false) === false);
it("Should return null", anyKeyValueOr($testObject, ["z"]) === null);
it("Should return 1", anyKeyValueOr($testObject, ["a"]) === 1);
it("Should return true", anyKeyValueOr($testObject, [], true) === true);

function it(string $name, bool $bool)
{
    echo $name . " : " . ($bool ? "OK" : "FAIL") . PHP_EOL;
}