PHP Classes

PHP Collection Example Class: Manage a playlist using SplDoublyLinkedList class

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Version License PHP version Categories
tocadordemusica 1.0.0The PHP License5PHP 5, Audio, Data types
Description 

Author

Raphael Paez

This is a simple example class that can manage a playlist using the SplDoublyLinkedList class.

It provides several functions that can be used to manage a list of songs that can be played by an application. Currently it can:

- Add songs to the playlist from a fixed array of sons
- Display the name of song that is currently playing
- Add one song to the end or beginning of the playlist
- Move on to the next or the previous song in the play list
- Display the name of the songs on the play list
- Display the total number of the songs on the queue
- Remove a song from the beginning or end of the playlist

In Portuguese:

O Heap é uma collection do PHP.

O Set é uma collection que tem uma característica muito importante com relação aos elementos que armazena.

A fila é uma Collection do PHP que tem uma característica principal em relação ao armazenamento e busca das informações que armazena.

A pilha é uma Collection do PHP que tem uma característica principal em relação ao armazenamento e busca das informações que armazena.

Utilizamos a SplDoublyLinkedList para armazenarmos as músicas em nosso tocador, a principal característica dessa classe é que ela implementa uma lista duplamente ligada.

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Example

<?php

require 'TocadorDeMusica.php';

$musicas = new SplFixedArray(2);

$musicas[0] = "One Dance";
$musicas[1] = "Closer";

$musicas->setSize(4);

$musicas[2] = "rockstar";
$musicas[3] = "Love Yourself";

$tocador = new TocadorDeMusica();

$tocador->adicionarMusicas($musicas);

$tocador->adicionarMusicaNoComecoDaPlaylist("Havana");

$tocador->removerMusicaDoComecoDaPlaylist();

$tocador->removerMusicaDoFinalDaPlaylist();

$tocador->exibirMusicas();

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Accessible without login Plain text file exemplo.php Example Aulas php
Plain text file TocadorDeMusica.php Class Aulas php

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