What does the "->" symbol mean in PHP?

In PHP, the "->" symbol is used to access properties and methods of an object. When you see this symbol in code, it means that you are accessing a property or method of an object. This is essential for object-oriented programming in PHP. Example:

class Person {
    public $name;

    public function sayHello() {
        echo "Hello, my name is " . $this->name;
    }
}

$person = new Person();
$person->name = "John";
$person->sayHello();