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<?php declare(strict_types=1); function test(string $num) : int { return $num; } echo test('5');
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: test(): Return value must be of type int, string returned in /in/frGZG:7 Stack trace: #0 /in/frGZG(10): test('5') #1 {main} thrown in /in/frGZG on line 7
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Return value of test() must be of the type int, string returned in /in/frGZG:7 Stack trace: #0 /in/frGZG(10): test('5') #1 {main} thrown in /in/frGZG on line 7
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33
Fatal error: Uncaught TypeError: Return value of test() must be of the type integer, string returned in /in/frGZG:7 Stack trace: #0 /in/frGZG(10): test('5') #1 {main} thrown in /in/frGZG on line 7
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/frGZG on line 3 Parse error: syntax error, unexpected ':', expecting '{' in /in/frGZG on line 5
Process exited with code 255.

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