What is the significance of the "." before the method in PHP?

The "." before a method in PHP is used to access a method or property of an object. It is known as the object operator and is used to call a method on an object instance. This is necessary to differentiate between object properties and methods when accessing them within a class. Example: To call a method `myMethod()` on an object instance `$myObject`, you would use the object operator like this:

$myObject->myMethod();