In PHP, how do I copy objects in a high-traffic application?

In high-traffic PHP applications, copying objects can be achieved through a variety of methods depending on the specific use case. A common approach is to use the `clone` keyword for cloning objects, which creates a shallow copy of the object. For deep copies, functions like `unserialize` or using serialization can be effective. Below is an example illustrating both shallow and deep copying of objects in PHP.

<?php class Person { public $name; public $age; public $address; public function __construct($name, $age, $address) { $this->name = $name; $this->age = $age; $this->address = $address; } } // Original object $person1 = new Person("John Doe", 30, "123 Main St"); // Shallow copy $person2 = clone $person1; // Modifying the shallow copy's properties $person2->name = "Jane Doe"; echo $person1->name; // Outputs: John Doe // Deep copy using serialization $person3 = unserialize(serialize($person1)); $person3->address = "456 Elm St"; echo $person1->address; // Outputs: 123 Main St ?>

Copying objects PHP object cloning shallow copy deep copy high-traffic PHP applications object serialization

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