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<?php declare(strict_types=1); (function():int{ return 'foo'; })();
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: {closure}(): Return value must be of type int, string returned in /in/H5KmG:3 Stack trace: #0 /in/H5KmG(3): {closure}() #1 {main} thrown in /in/H5KmG on line 3
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 {closure}() must be of the type int, string returned in /in/H5KmG:3 Stack trace: #0 /in/H5KmG(3): {closure}() #1 {main} thrown in /in/H5KmG on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
Fatal error: Uncaught TypeError: Return value of {closure}() must be of the type integer, string returned in /in/H5KmG:3 Stack trace: #0 /in/H5KmG(3): {closure}() #1 {main} thrown in /in/H5KmG on line 3
Process exited with code 255.
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/H5KmG on line 1 Parse error: syntax error, unexpected ':', expecting '{' in /in/H5KmG on line 3
Process exited with code 255.

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