Btukfyl

I need to see what class type is being expected (type-hinted) for a method property.

<?php



class Foo {}



class Bar {

    public function do(Foo $foo_instance) {}

}



$bar = new Bar();

$some_instance = new ??();

$bar->do($some_instance);



?>

I think this is something available in the Reflection API, but I have yet to find anything that spits out 'Foo' as my type-hint for Bar::do. Any ideas?

Context

I want to do something like:

<?php

...

if ( myMethodExpects($class, $method, 'Foo') ) {

    $some_instance = new Foo();

} elseif ( myMethodExpects($class, $method, 'Baz') {

    $some_instance = new Baz();

} elseif ( myMethodHasNoTypeHint($class, $method) ) {

    $some_instance = 'just a string';

}

...

?>

Okay, asked Google the right questions.

I was looking for ReflectionParameter::getClass. Used like so:

<?php



class Foo {

   public function do(Bar $bar, Baz $baz, $foo='') {}

}



$method = new ReflectionMethod('Foo', 'do');

$method_params = $method->getParameters();

foreach ( $method_params as $param ) {

    var_dump($param->getClass());

}



?>



/* RETURNS

-> object(ReflectionClass)[6]

  public 'name' => string 'Bar' (length=3)

-> object(ReflectionClass)[6]

  public 'name' => string 'Baz' (length=4)

-> null

*/

This can also be used on ReflectionFunction:

$function_params = (new ReflectionFunction('func_name')->getParameters();