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<?php interface IX {} class X implements IX {} class Y {} function foo(IX $x, $y) {} $rf = new \ReflectionFunction('foo'); $rp = $rf->getParameters()[0]; $x = new X; var_dump($rp->getType(), $rp->getClass()->isInstance(0), $rf->getParameters()[1]->getClass());
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Method ReflectionParameter::getClass() is deprecated in /in/MvApR on line 13 Fatal error: Uncaught TypeError: ReflectionClass::isInstance(): Argument #1 ($object) must be of type object, int given in /in/MvApR:13 Stack trace: #0 /in/MvApR(13): ReflectionClass->isInstance(0) #1 {main} thrown in /in/MvApR on line 13
Process exited with code 255.

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