Describing a variable

The @var keyword can be used to describe the type and usage of:

• a class property
• a local or global variable
• a class or global constant

class Example {
    /** @var string This is something that stays the same */
    const UNCHANGING = "Untouchable";

    /** @var string $some_str This is some string */
    public $some_str;

    /**
     * @var array $stuff    This is a collection of stuff
     * @var array $nonsense These are nonsense
     */
    private $stuff, $nonsense;

    ...
}

The type can be one of the built-in PHP types, or a user-defined class, including namespaces.

The name of the variable should be included, but can be omitted if the docblock applies to only one item.