PHP 7.2.0 Release Candidate 4 Released

ReflectionType::allowsNull

(PHP 7)

ReflectionType::allowsNullChecks if null is allowed

Description

public bool ReflectionType::allowsNull ( void )

Checks whether the parameter allows NULL.

Parameters

This function has no parameters.

Return Values

TRUE if NULL is allowed, otherwise FALSE

Examples

Example #1 ReflectionType::allowsNull() example

<?php
function someFunction(string $paramStdClass $param2 null) {}

$reflectionFunc = new ReflectionFunction('someFunction');
$reflectionParams $reflectionFunc->getParameters();

var_dump($reflectionParams[0]->getType()->allowsNull());
var_dump($reflectionParams[1]->getType()->allowsNull());

The above example will output something similar to:

bool(false)
bool(true)

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