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<?php class integer { private $value; public function __construct(int $value) { $this->value = $value; } public static function __invoke(int ...$value) : int { if (count($value) === 1) $this->value = $value[0]; else throw new Exception('Multiple values given.'); return $this->value; } } $testi = new integer(1); $testi(2);
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: Method integer::__invoke() cannot be static in /in/eYIPu on line 11
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, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: The magic method __invoke() must have public visibility and cannot be static in /in/eYIPu on line 11 Fatal error: Uncaught Error: Using $this when not in object context in /in/eYIPu:14 Stack trace: #0 /in/eYIPu(22): integer::__invoke(2) #1 {main} thrown in /in/eYIPu on line 14
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Warning: The magic method __invoke() must have public visibility and cannot be static in /in/eYIPu on line 11 Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/eYIPu on line 11
Process exited with code 255.
Output for 5.5.0 - 5.5.38
Warning: The magic method __invoke() must have public visibility and cannot be static in /in/eYIPu on line 11 Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /in/eYIPu on line 11
Process exited with code 255.

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