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<?php class Sum { public static $res = []; private static $instance = null; public static function run() { if (self::$instance === null) self::$instance = new self; return self::$instance; } public function res() { return array_sum(self::$res); } public function add($int) { self::$res[] = $int; return $this; } } $sum = new Sum(); $x = $sum->add(5)->add(6)->res(); echo $x;
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
11
preferences:
154.94 ms | 404 KiB | 258 Q