What are some best practices for implementing method chaining in PHP classes?

Method chaining in PHP classes allows for a more fluent and readable way to call multiple methods on an object in a single line of code. To implement method chaining, each method in the class should return $this at the end to allow for chaining. Additionally, make sure to return $this in each method that you want to be chainable. 

class MyClass {
    private $data;

    public function setData($data) {
        $this->data = $data;
        return $this;
    }

    public function processData() {
        // Process data here
        return $this;
    }

    public function displayData() {
        // Display data here
        return $this;
    }
}

// Example usage of method chaining
$myObject = new MyClass();
$myObject->setData('Hello')->processData()->displayData();

Keywords

method chaining PHP classes object-oriented programming fluent interface design patterns

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