PHP Manual: Returns whether the function has a tentative return type

public bool ReflectionFunctionAbstract::hasTentativeReturnType()

Returns whether the function has a tentative return type.

This function has no parameters.

Returns true if the function has a tentative return type, otherwise false.

Example #1 ReflectionFunctionAbstract::hasTentativeReturnType example

<?php

$method = new ReflectionMethod(\ArrayAccess::class, 'offsetGet');
var_dump($method->hasTentativeReturnType());

The above example will output:

bool(true)

ReflectionFunctionAbstract::hasTentativeReturnType