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<?php declare(strict_types=1); function double(int $value) { return 2 * $value; } function coerceInt(string $value) : int { return (int)$value; } $a = double(coerceInt("5")); var_dump($a); $a = double("5"); var_dump($a);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
int(10) Fatal error: Uncaught TypeError: double(): Argument #1 ($value) must be of type int, string given, called in /in/VhnpM on line 15 and defined in /in/VhnpM:4 Stack trace: #0 /in/VhnpM(15): double('5') #1 {main} thrown in /in/VhnpM on line 4
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
int(10) Fatal error: Uncaught TypeError: Argument 1 passed to double() must be of the type int, string given, called in /in/VhnpM on line 15 and defined in /in/VhnpM:4 Stack trace: #0 /in/VhnpM(15): double('5') #1 {main} thrown in /in/VhnpM on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
int(10) Fatal error: Uncaught TypeError: Argument 1 passed to double() must be of the type integer, string given, called in /in/VhnpM on line 15 and defined in /in/VhnpM:4 Stack trace: #0 /in/VhnpM(15): double('5') #1 {main} thrown in /in/VhnpM 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 - 5.6.40
Warning: Unsupported declare 'strict_types' in /in/VhnpM on line 2 Parse error: syntax error, unexpected ':', expecting '{' in /in/VhnpM on line 9
Process exited with code 255.

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