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<?php declare(strict_types=1); function double(int $value) { return 2 * $value; } function coerceInt(string $value) : int { return $value; } $a = double(coerceInt("5")); var_dump($a);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught TypeError: coerceInt(): Return value must be of type int, string returned in /in/dONJL:11 Stack trace: #0 /in/dONJL(13): coerceInt('5') #1 {main} thrown in /in/dONJL on line 11
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 coerceInt() must be of the type int, string returned in /in/dONJL:11 Stack trace: #0 /in/dONJL(13): coerceInt('5') #1 {main} thrown in /in/dONJL on line 11
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 coerceInt() must be of the type integer, string returned in /in/dONJL:11 Stack trace: #0 /in/dONJL(13): coerceInt('5') #1 {main} thrown in /in/dONJL on line 11
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/dONJL on line 3 Parse error: syntax error, unexpected ':', expecting '{' in /in/dONJL on line 9
Process exited with code 255.

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