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<?php class Foo { public function foo() { return null; } } $foo = new Foo; ?> <?= $foo->foo() ?? 'test' ?> <?= null?->foo() ?? 'test' ?> <?= isset($foo->foo()) ? $foo->foo() : 'test' ?>
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Cannot use isset() on the result of an expression (you can use "null !== expression" instead) in /in/eT1Fq on line 14
Process exited with code 255.

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