Modern PHP interface 接口
2024-10-19 14:08:11
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();
}
Documentable.php
// 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;
}
}
HtmlDocument.php
1 <?php
2 require_once __DIR__ . '/Documentable.php';
3
4 class StreamDocument implements Documentable {
5
6 protected $resource;
7 protected $buffer;
8
9 public function __construct($resource, $buffer = 4096) {
10 $this->resource = $resource;
11 $this->buffer = $buffer;
12 }
13
14 public function getId() {
15 return 'resource-' .(int)$this->resource;
16 }
17
18 public function getContent() {
19 $streamContent = '';
20 rewind($this->resource);
21 while (feof($this->resource) === false) {
22 $streamContent .= fread($this->resource, $this->buffer);
23 }
24 return $streamContent;
25 }
26 }
StreamDocument.php
1 <?php
2 require_once __DIR__ . '/Documentable.php';
3
4 class CommandOutputDocument implements Documentable {
5
6 protected $command;
7
8 public function __construct($command) {
9 $this->command = $command;
10 }
11
12 public function getId() {
13 return $this->command;
14 }
15
16 public function getContent() {
17 return shell_exec($this->command);
18 }
19 }
CommandOutputDocument.php
// Container
1 <?php
2 include 'Documentable.php';
3
4 class DocumentStore {
5 protected $data = [];
6
7 public function addDocument(Documentable $document) {
8 $key = $document->getId();
9 $value = $document->getContent();
10 $this->data[$key] = $value;
11 }
12
13 public function getDocuemnts() {
14 return $this->data;
15 }
16 }
DocumentStore.php
// 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());
index.php
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