{"id":19143797,"url":"https://github.com/teodoroleckie/design-patterns","last_synced_at":"2025-10-10T08:37:03.904Z","repository":{"id":57070511,"uuid":"356547001","full_name":"teodoroleckie/design-patterns","owner":"teodoroleckie","description":"Simple php design pattern. 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// 'Name 1'\n$originator-\u003echangeState(new State('Name 1', 'value 1'));\n$historic-\u003esave();\n\n$originator-\u003echangeState(new State('Name 2', 'value 2'));\n$originator-\u003estate()-\u003ename(); // 'Name 2'\n\n$historic-\u003eundo();\n$originator-\u003estate()-\u003ename(); // 'Name 1'\n\n$historic-\u003eundo();\n$originator-\u003estate()-\u003ename(); // 'Name 1'\n\n```\n\n### State:\n```php\n\u003c?php\n\nuse Tleckie\\DesignPatterns\\State\\Car;\nuse Tleckie\\DesignPatterns\\State\\OffState;\nuse Exception;\n\n$car = new Car(new OffState());\n$car-\u003eisOn(); // false\n\ntry{\n\n    $car-\u003eturnOff(); // trow Exception\n\n}catch(Exception $exception){\n\n}\n\n$car-\u003eturnOn(); // OnState\n$car-\u003eisOn(); // true\n$car-\u003espeedUp(); //SpeedUpState\n```\n\n### Strategy:\n```php\n\u003c?php\n\nuse Tleckie\\DesignPatterns\\Strategy\\Context;\nuse Tleckie\\DesignPatterns\\Strategy\\Terms;\nuse Tleckie\\DesignPatterns\\Strategy\\MultiplyStrategy;\nuse Tleckie\\DesignPatterns\\Strategy\\DivisionStrategy;\nuse Tleckie\\DesignPatterns\\Strategy\\SumStrategy;\n\n$context = new Context(new MultiplyStrategy);\n$terms = new Terms(6,3);\n\n$context-\u003eexecute($terms); // 18\n$context-\u003echangeStrategy(new DivisionStrategy)-\u003eexecute($terms); // 2\n$context-\u003echangeStrategy(new SumStrategy)-\u003eexecute($terms); // 9\n```\n\n### Chain of Responsibility:\n```php\n\u003c?php\n\nuse Tleckie\\DesignPatterns\\ChainResponsibility\\DivisionOperation;\nuse Tleckie\\DesignPatterns\\ChainResponsibility\\SumOperation;\nuse Tleckie\\DesignPatterns\\ChainResponsibility\\SubtractionOperation;\nuse Tleckie\\DesignPatterns\\ChainResponsibility\\Operation;\n\n$divisionOperationHandler = new DivisionOperation();\n\n$divisionOperationHandler\n    -\u003enext(new SumOperation())\n    -\u003enext(new SubtractionOperation());\n\n$divisionOperationHandler-\u003ehandle(new Operation('SUBTRACTION', 10,2)); // 8\n$divisionOperationHandler-\u003ehandle(new Operation('DIVISION', 10,2)); // 5\n$divisionOperationHandler-\u003ehandle(new Operation('SUM', 10,2)); // 12\n$divisionOperationHandler-\u003ehandle(new Operation('INVALID', 10,2)); // null\n```\n\n### Decorator:\n```php\n\u003c?php\n\nuse Tleckie\\DesignPatterns\\Decorator\\NullNormalize;\nuse Tleckie\\DesignPatterns\\Decorator\\LowerNormalize;\nuse Tleckie\\DesignPatterns\\Decorator\\TextNormalize;\nuse Tleckie\\DesignPatterns\\Decorator\\SpacingNormalize;\n\n$decorator = new SpacingNormalize(\n    new LowerNormalize(\n        new TextNormalize(\n            new NullNormalize\n        )\n    )\n);\n\n$text = 'SAME random TEXT!';\n$decorator-\u003enormalize($text); // same-random-text!\n```","funding_links":["https://github.com/sponsors/teodoroleckie","https://www.paypal.com/donate?business=ZHYA2MTGA4884\u0026currency_code=USD"],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fteodoroleckie%2Fdesign-patterns","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fteodoroleckie%2Fdesign-patterns","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fteodoroleckie%2Fdesign-patterns/lists"}