The Collection interface

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Introduction

Collection is the base interface which covers functionality common to all the data structures in this library. It guarantees that all structures are traversable, countable, and can be converted to json using json_encode().

Interface synopsis

class Ds\Collection implements Countable, IteratorAggregate, JsonSerializable {

/* Methods */

abstract public clear(): void

abstract public copy(): Ds\Collection

abstract public isEmpty(): bool

abstract public toArray(): array

}

Changelog

Version	Description
PECL ds 1.4.0	Collection implements IteratorAggregate now instead of just Traversable. (This change came to the polyfill in 1.4.1.)

Ds\Collection::clear — Removes all values
Ds\Collection::copy — Returns a shallow copy of the collection
Ds\Collection::isEmpty — Returns whether the collection is empty
Ds\Collection::toArray — Converts the collection to an array

The Collection interface

Introduction

Interface synopsis

Changelog

Table of Contents