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<?php class Hello { public function __toString() { return null; } } $h = new Hello(); echo " First " . $h->__toString() . PHP_EOL; echo " Second " . $h . PHP_EOL;
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: Hello::__toString(): Return value must be of type string, null returned in /in/dd7hD:6 Stack trace: #0 /in/dd7hD(11): Hello->__toString() #1 {main} thrown in /in/dd7hD on line 6
Process exited with code 255.

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