is_null

<?php             ->call('resetKeys', 'nullProp')

            ->assertSet('nullProp', null);



        $this->assertTrue(is_null($component->nullProp));

    }

<?php             is_numeric($target) ||

            is_string($target) ||

            is_bool($target) ||

            is_null($target);

    }



    static function getPublicPropertiesDefinedOnSubclass($target) {

<?php         if ((new ReflectionClass($parameterClassName))->isEnum()) {

            $enumValue = $parameterClassName::tryFrom($parameterValue);



            if (is_null($enumValue)) {

                throw new BackedEnumCaseNotFoundException($parameterClassName, $parameterValue);

            }

<?php     {

        $rules = config('livewire.temporary_file_upload.rules');



        if (is_null($rules)) return ['required', 'file', 'max:12288'];



        if (is_array($rules)) return $rules;

<?php     function _uploadErrored($name, $errorsInJson, $isMultiple) {

        $this->dispatch('upload:errored', name: $name)->self();



        if (is_null($errorsInJson)) {


            $translator = app()->make('translator');

<?php     {

        $key = $this->path ?? null;



        if (is_null($key)) return [];



        return SupportLegacyModels::getRulesFor($context->component, $key);

    }

<?php         $collection->each(function ($model) use ($connection) {


            if (is_null($model->getConnectionName())) {

                return;

            }

<?php     {

        $key = $this->path ?? null;



        if (is_null($key)) return [];



        if ($context->component) {

            return SupportLegacyModels::getRulesFor($this->context->component, $key);

<?php         $aliasClass = Relation::getMorphedModel($class);



        if (! is_null($aliasClass)) {

            $class = $aliasClass;

        }

<?php         $modelAlias = Relation::getMorphedModel($modelClass);



        if (! is_null($modelAlias)) {

            $modelClass = $modelAlias;

        }

<?php         $aliasClass = Relation::getMorphedModel($class);



        if (! is_null($aliasClass)) {

            $class = $aliasClass;

        }

<?php             'Component did not perform a redirect.'

        );



        if (! is_null($uri)) {

            PHPUnit::assertSame(url($uri), url($this->effects['redirect']));

        }

<?php             $fullSelector = $this->resolver->format($selector);



            PHPUnit::assertTrue(

                is_null($this->resolver->find($selector)),

                "Element [{$fullSelector}] is present."

            );

<?php         $rules = [];



        if (is_null($this->rule)) {



        } elseif (is_array($this->rule) && count($this->rule) > 0 && ! is_numeric(array_keys($this->rule)[0])) {

<?php     public function validate($rules = null, $messages = [], $attributes = [])

    {

        $isUsingGlobalRules = is_null($rules);



        [$rules, $messages, $attributes] = $this->providedOrGlobalRulesMessagesAndAttributes($rules, $messages, $attributes);