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<?php function test(string $t) { echo $t.PHP_EOL; } test('Hello!'); test((string) null);
based on EjaSW
Output for 7.0.0 - 7.3.0beta1
Output for 5.6.0 - 5.6.28
Catchable fatal error: Argument 1 passed to test() must be an instance of string, string given, called in /in/lpjcu on line 7 and defined in /in/lpjcu on line 3
Process exited with code 255.