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<?php declare(strict_types=1); function double(int $value) { return 2 * $value; } $a = double("5"); var_dump($a);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: double(): Argument #1 ($value) must be of type int, string given, called in /in/WHvRd on line 8 and defined in /in/WHvRd:4 Stack trace: #0 /in/WHvRd(8): double('5') #1 {main} thrown in /in/WHvRd on line 4
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Argument 1 passed to double() must be of the type int, string given, called in /in/WHvRd on line 8 and defined in /in/WHvRd:4 Stack trace: #0 /in/WHvRd(8): double('5') #1 {main} thrown in /in/WHvRd on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33
Fatal error: Uncaught TypeError: Argument 1 passed to double() must be of the type integer, string given, called in /in/WHvRd on line 8 and defined in /in/WHvRd:4 Stack trace: #0 /in/WHvRd(8): double('5') #1 {main} thrown in /in/WHvRd on line 4
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Warning: Unsupported declare 'strict_types' in /in/WHvRd on line 3 Catchable fatal error: Argument 1 passed to double() must be an instance of int, string given, called in /in/WHvRd on line 8 and defined in /in/WHvRd on line 4
Process exited with code 255.

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