php教程

php手册

The Sequence interface

(No version information available, might only be in Git)

简介

A Sequence describes the behaviour of values arranged in a single, linear dimension. Some languages refer to this as a "List". It's similar to an array that uses incremental integer keys, with the exception of a few characteristics:

Values will always be indexed as [0, 1, 2, ..., size - 1].
Only allowed to access values by index in the range [0, size - 1].

Use cases:

Wherever you would use an array as a list (not concerned with keys).
A more efficient alternative to SplDoublyLinkedList and SplFixedArray.

接口摘要

Ds\Sequence implements Ds\Collection {

/* 方法 */

abstract public allocate ( int $capacity ) : void

abstract public apply ( callable $callback ) : void

abstract public capacity ( void ) : int

abstract public contains ([ mixed $...values ] ) : bool

abstract public filter ([ callable $callback ] ) : Ds\Sequence

abstract public find ( mixed $value ) : mixed

abstract public first ( void ) : mixed

abstract public get ( int $index ) : mixed

abstract public insert ( int $index [, mixed $...values ] ) : void

abstract public join ([ string $glue ] ) : string

abstract public last ( void ) : mixed

abstract public map ( callable $callback ) : Ds\Sequence

abstract public merge ( mixed $values ) : Ds\Sequence

abstract public pop ( void ) : mixed

abstract public push ([ mixed $...values ] ) : void

abstract public reduce ( callable $callback [, mixed $initial ] ) : mixed

abstract public remove ( int $index ) : mixed

abstract public reverse ( void ) : void

abstract public reversed ( void ) : Ds\Sequence

abstract public rotate ( int $rotations ) : void

abstract public set ( int $index , mixed $value ) : void

abstract public shift ( void ) : mixed

abstract public slice ( int $index [, int $length ] ) : Ds\Sequence

abstract public sort ([ callable $comparator ] ) : void

abstract public sorted ([ callable $comparator ] ) : Ds\Sequence

abstract public sum ( void ) : number

abstract public unshift ([ mixed $values ] ) : void

}

Ds\Sequence::allocate — Allocates enough memory for a required capacity
Ds\Sequence::apply — Updates all values by applying a callback function to each value
Ds\Sequence::capacity — Returns the current capacity
Ds\Sequence::contains — Determines if the sequence contains given values
Ds\Sequence::filter — Creates a new sequence using a callable to determine which values to include
Ds\Sequence::find — Attempts to find a value's index
Ds\Sequence::first — Returns the first value in the sequence
Ds\Sequence::get — Returns the value at a given index
Ds\Sequence::insert — Inserts values at a given index
Ds\Sequence::join — Joins all values together as a string
Ds\Sequence::last — Returns the last value
Ds\Sequence::map — Returns the result of applying a callback to each value
Ds\Sequence::merge — Returns the result of adding all given values to the sequence
Ds\Sequence::pop — Removes and returns the last value
Ds\Sequence::push — Adds values to the end of the sequence
Ds\Sequence::reduce — Reduces the sequence to a single value using a callback function
Ds\Sequence::remove — Removes and returns a value by index
Ds\Sequence::reverse — Reverses the sequence in-place
Ds\Sequence::reversed — Returns a reversed copy
Ds\Sequence::rotate — Rotates the sequence by a given number of rotations
Ds\Sequence::set — Updates a value at a given index
Ds\Sequence::shift — Removes and returns the first value
Ds\Sequence::slice — Returns a sub-sequence of a given range
Ds\Sequence::sort — Sorts the sequence in-place
Ds\Sequence::sorted — Returns a sorted copy
Ds\Sequence::sum — Returns the sum of all values in the sequence
Ds\Sequence::unshift — Adds values to the front of the sequence

User Contributed Notes

There are no user contributed notes for this page.

php教程 php手册 php手册

The Sequence interface

简介

接口摘要

Table of Contents

User Contributed Notes

php教程

php手册