GetDuckTypes class

Since v1.3.0

Description

GetDuckTypes returns a list of all possible PHP types for a given variable. The list is ordered with the most specific match first.

Public Interface

GetDuckTypes has the following public interface:

namespace GanbaroDigital\MissingBits\TypeInspectors;

/**
 * return a practical list of data types for any value or variable
 */
class GetDuckTypes
{
    /**
     * return a practical list of data types for any value or variable
     *
     * @param  mixed $item
     *         the item to examine
     * @return string[]
     *         the list of type(s) that this item can be
     */
    public function getDuckTypes($item);

    /**
     * return a practical list of data types for any value or variable
     *
     * @param  mixed $item
     *         the item to examine
     * @return string[]
     *         the list of type(s) that this item can be
     */
    public static function from($item);
}

Methods

Method Use
GetDuckTypes::getDuckTypes() object
GetDuckTypes::from() static

Class Contract

Here is the contract for this class:

GanbaroDigital\MissingBits\TypeInspectors\GetDuckTypes
 [x] Can instantiate
 [x] Can use as object
 [x] Can call statically
 [x] Can call as function
 [x] Can get interface names
 [x] Detects callable arrays
 [x] Detects invokeable objects
 [x] Detects stringy objects
 [x] treats stdClass as Traversable
 [x] Detects stringy classnames
 [x] Detects callable strings
 [x] Detects interfaces

Class contracts are built from this class's unit tests.

Future releases of this class will not break this contract.

Future releases of this class may add to this contract. New additions may include:

  • clarifying existing behaviour (e.g. stricter contract around input or return types)
  • add new behaviours (e.g. extra trait methods)

When you use this class, you can only rely on the behaviours documented by this contract.

If you:

  • find other ways to use this class,
  • or depend on behaviours that are not covered by a unit test,
  • or depend on undocumented internal states of this class,

... your code may not work in the future.

Notes

None at this time.