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Operator Overloading for Objects

This extension defines and implements operator overloading for objects. It allows defining how an object reacts when an operator is used on it.

Intro

This extension defines and implements operator overloading for objects. It allows defining how an object reacts when an operator is used on it.

One example of this is creating a collection type object that has the addition operator overloaded to allow adding elements to the collection or adding two collections together.

Another example is creating an enhanced string class that has the multiplication operator overloaded to allow repeating the string a certain number of times.

Setup Overloading

Source: reference/operator/book.xml · from the official PHP manual (php/doc-en)