array_key_first

firebed/aade-mydata

Supported Versions: PHP 7 >= 7.3.0, PHP 8

Gets the first key of an array

<?php array_key_first(array $array): int|string|null

<?php     protected function buildArray(DOMNode $parent, string $nodeName, array $nodeValue): void

    {


        if (is_string(array_key_first($nodeValue))) {

            $this->processAssocArray($parent, $nodeName, $nodeValue);

            return;

        }

src/Xml/XMLWriter.php