Modern PHP interface 接口

The right way

/dev/hell Code

Response.php

接口 demo:

modern-php/
├── data
│   └── stream.txt
└── interface
├── CommandOutputDocument.php
├── DocumentStore.php
├── Documentable.php
├── HtmlDocument.php
├── StreamDocument.php
└── index.php

// interface

<?php

interface Documentable {
    public function getId();

    public function getContent();
}

//  class x 3 implements interface

<?php
require_once __DIR__ . '/Documentable.php';

class HtmlDocument implements Documentable {
    protected $url;

    public function __construct($url) {
        $this->url = $url;
    }

    public function getId() {
        return $this->url;
    }

    /**
     * @return string
     */
    public function getContent() {
        $ch = curl_init();
        curl_setopt_array($ch, [
            CURLOPT_URL => $this->url,
            CURLOPT_RETURNTRANSFER => 1,
            CURLOPT_CONNECTTIMEOUT => 3,
            CURLOPT_FOLLOWLOCATION => 1,
            CURLOPT_MAXREDIRS => 3
        ]);
        $html = curl_exec($ch);
        curl_close($ch);
        return $html;
    }
}

<?php
require_once __DIR__ . '/Documentable.php';

class StreamDocument implements Documentable {

    protected $resource;
    protected $buffer;

    public function __construct($resource, $buffer = 4096) {
        $this->resource = $resource;
        $this->buffer = $buffer;
    }

    public function getId() {
        return 'resource-' .(int)$this->resource;
    }

    public function getContent() {
        $streamContent = '';
        rewind($this->resource);
        while (feof($this->resource) === false) {
            $streamContent .= fread($this->resource, $this->buffer);
        }
        return $streamContent;
    }
}

<?php
require_once __DIR__ . '/Documentable.php';

class CommandOutputDocument implements Documentable {

    protected $command;

    public function __construct($command) {
        $this->command = $command;
    }

    public function getId() {
        return $this->command;
    }

    public function getContent() {
        return shell_exec($this->command);
    }
}

 // Container

<?php
include 'Documentable.php';

class DocumentStore {
    protected $data = [];

    public function addDocument(Documentable $document) {
        $key = $document->getId();
        $value = $document->getContent();
        $this->data[$key] = $value;
    }

    public function getDocuemnts() {
        return $this->data;
    }
}

// Usage:

<?php
include 'DocumentStore.php';

include 'HtmlDocument.php';
include 'StreamDocument.php';
include 'CommandOutputDocument.php';

$documentStore = new DocumentStore();

$htmlDoc = new HtmlDocument('https://php.net');
$documentStore->addDocument($htmlDoc);

$streamDoc = new StreamDocument(fopen('../data/stream.txt', "rb"));
$documentStore->addDocument($streamDoc);

$cmdDoc = new CommandOutputDocument('cat /etc/hosts');
$documentStore->addDocument($cmdDoc);

print_r($documentStore->getDocuemnts());