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<?php declare(strict_types=1); class Foo { function __toString() {} } function myadd(int $a, int $b): Foo { return new Foo; return $a + $b . "hello"; } echo myadd(6, 7);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: Foo::__toString(): Return value must be of type string, none returned in /in/sjmQq:5 Stack trace: #0 /in/sjmQq(13): Foo->__toString() #1 {main} thrown in /in/sjmQq on line 5
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Method Foo::__toString() must return a string value in /in/sjmQq:13 Stack trace: #0 {main} thrown in /in/sjmQq on line 13
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Recoverable fatal error: Method Foo::__toString() must return a string value in /in/sjmQq on line 13
Process exited with code 255.
Output for 7.0.0 - 7.0.33
Catchable fatal error: Method Foo::__toString() must return a string value in /in/sjmQq on line 13
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Warning: Unsupported declare 'strict_types' in /in/sjmQq on line 2 Parse error: syntax error, unexpected ':', expecting '{' in /in/sjmQq on line 8
Process exited with code 255.

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