What is the purpose of constructors in PHP classes and how should they be utilized for object creation and variable initialization?

Constructors in PHP classes are special methods that are automatically called when an object is created. They are used to initialize object properties or perform any setup tasks needed for the object to be in a valid state. To utilize constructors for object creation and variable initialization, you can define a constructor method within your class that takes parameters to initialize the object properties.

class Person {
    public $name;
    public $age;

    public function __construct($name, $age) {
        $this->name = $name;
        $this->age = $age;
    }
}

// Create a new Person object with initialization values
$person = new Person("John Doe", 30);