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The largest switch/case statement I have ever seen in an object-oriented program had over 20 conditions. During runtime, this code module executes all conditions every time. Each condition is responsible for creating a new object, which is used to communicate with external uses of the application's API. After performing some general troubleshooting on one of them, I started looking at the interfaces implemented by the application. To my surprise, every class referenced in the switch/case statement is implementing the same interface! When later adding new conditional statements to the switch/case statement, I recommend using the factory pattern instead. What is factory pattern? The Factory design pattern provides an interface for obtaining a new instance of an object while enabling the calling code to avoid determining the steps to actually instantiate the base class. As PHP has grown and evolved as a language, its features have continued to provide ease of development through the application of proven design patterns. A particularly useful feature in PHP is the ability to create new instances of a class based on the contents of variables. This dynamic method of object instantiation is a code block building approach to implementing the Factory design pattern in PHP. Based on the factory design pattern
1. PHP advanced object-oriented design pattern: Factory pattern usage examples
Introduction: The largest switch/case statement I have ever seen in an object-oriented program had over 20 conditions. During runtime, this code module executes all conditions every time. Each condition is responsible for creating a new object, which is used to communicate with external uses of the application's API. After performing some general troubleshooting on one of them, I started looking at the interfaces implemented by the application. To my surprise, every class referenced in the switch/case statement is implementing the same interface! When later adding new conditional statements to the switch/case statement, I recommend using the factory pattern instead.
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