ReflectionType::isBuiltin

(PHP 7)

Checks if it is a built-in type

public bool ReflectionType::isBuiltin ( void )

Checks if the type is a built-in type in PHP.

Returns:

TRUE if it's a built-in type, otherwise FALSE

Examples:

ReflectionType::isBuiltin() example

<?php
class SomeClass {}
 
function someFunction(string $param, SomeClass $param2, StdClass $param3) {}
 
$reflectionFunc = new ReflectionFunction('someFunction');
$reflectionParams = $reflectionFunc->getParameters();
 
var_dump($reflectionParams[0]->getType()->isBuiltin());
var_dump($reflectionParams[1]->getType()->isBuiltin());
var_dump($reflectionParams[2]->getType()->isBuiltin());

The above example will output something similar to:

bool(true)
bool(false)
bool(false)