<?php
interface I {}
class C implements I {}
class D {}
var_dump((new C) instanceof I);
var_dump((new D) instanceof I);
var_dump(is_a(new C, 'I'));
var_dump(is_a(new D, 'I'));
bool(true)
bool(false)
Strict Standards: is_a(): Deprecated. Please use the instanceof operator in /in/kR6cN on line 10
bool(true)
Strict Standards: is_a(): Deprecated. Please use the instanceof operator in /in/kR6cN on line 11
bool(false)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/kR6cN on line 3
Process exited with code 255.