is_null

firebed/aade-mydata

Supported Versions: PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8

Finds whether a variable is null

<?php is_null(mixed $value): bool

<?php     public function hasErrors(): bool

    {

        return !is_null($this->getErrors()) && count($this->getErrors()) > 0;

    }

src/Models/Response.php

<?php     protected function build(DOMNode $parent, string $nodeName, mixed $nodeValue, $namespace = null): void

    {

        if (is_null($nodeValue) || (is_string($nodeValue) && strlen($nodeValue) === 0)) {

            return;

        }

src/Xml/XMLWriter.php

<?php             : $this->document->createElement($nodeName);




        if (!is_null($nodeValue)) {

            $newNode->appendChild($this->document->createTextNode($nodeValue));

        }

src/Xml/XMLWriter.php

<?php     protected function getNamespace(?string $key): ?string

    {

        if (is_null($key)) {

            return null;

        }

src/Xml/XMLWriter.php