Online PHP editor | output for 1QdO0

<?php namespace Foo\Bar\subnamespace; const FOO = 1; function foo() {} class foo { static function staticmethod() { echo "Good bye","<br />"; } } namespace Foo\Bar; const FOO = 2; function foo() {} class foo { static function staticmethod() { echo "hello","<br />"; } } /* Unqualified name */ foo(); // resolves to function Foo\Bar\foo foo::staticmethod(); // resolves to class Foo\Bar\foo, method staticmethod echo FOO."<br />"; // resolves to constant Foo\Bar\FOO /* Qualified name */ subnamespace\foo(); // resolves to function Foo\Bar\subnamespace\foo subnamespace\foo::staticmethod(); // resolves to class Foo\Bar\subnamespace\foo, // method staticmethod echo subnamespace\FOO, "<br />"; // resolves to constant Foo\Bar\subnamespace\FOO /* Fully qualified name */ \Foo\Bar\foo(); // resolves to function Foo\Bar\foo \Foo\Bar\foo::staticmethod(); // resolves to class Foo\Bar\foo, method staticmethod echo \Foo\Bar\FOO; // resolves to constant Foo\Bar\FOO ?>