本文实例讲述了PHP容器类的两种实现方式。分享给大家供大家参考，具体如下：
通过魔术方法实现
class
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
class MagicContainer{ private $ele; function __construct() { $this->ele = []; } function __set($name, $value) { $this->ele[$name] = $value; } function __get($name) { return $this->ele[$name]; } function __isset($name) { return isset($this->ele[$name]); } function __unset($name) { if(isset($this->ele[$name])){ unset($this->ele[$name]); } }} |
usage
|
1
2
3
4
5
6
|
$container = new MagicContainer();$container->logger = function ($msg){ file_put_contents('info.log',$msg.PHP_EOL,FILE_APPEND);};$logger = $container->logger;$logger('magic container works'); |
通过ArrayAccess接口实现
class
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
class ArrayContainer implements ArrayAccess { private $elements; public function __construct() { $this->elements = []; } public function offsetExists($offset){ return isset($this->elements[$offset]); } public function offsetGet($offset){ if($this->offsetExists($offset)){ return $this->elements[$offset]; }else{ return false; } } public function offsetSet($offset, $value){ $this->elements[$offset] = $value; } public function offsetUnset($offset){ if($this->offsetExists($offset)){ unset($this->elements[$offset]); } }} |
usage
|
1
2
3
4
5
6
|
$container = new ArrayContainer();$container['logger'] = function ($msg){ file_put_contents('info.log',$msg.PHP_EOL,FILE_APPEND);};$logger = $container['logger'];$logger('array container works'); |
Container
class
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
class Container implements ArrayAccess { private $elements; public function __construct() { $this->elements = []; } public function offsetExists($offset){ return isset($this->elements[$offset]); } public function offsetGet($offset){ if($this->offsetExists($offset)){ return $this->elements[$offset]; }else{ return false; } } public function offsetSet($offset, $value){ $this->elements[$offset] = $value; } public function offsetUnset($offset){ if($this->offsetExists($offset)){ unset($this->elements[$offset]); } } function __set($name, $value) { $this->elements[$name] = $value; } function __get($name) { return $this->elements[$name]; } function __isset($name) { return isset($this->elements[$name]); } function __unset($name) { if(isset($this->elements[$name])){ unset($this->elements[$name]); } }} |
usage
|
1
2
3
4
5
6
|
$container = new Container();$container['logger'] = function ($msg){ file_put_contents('info.log',$msg.PHP_EOL,FILE_APPEND);};$logger = $container->logger;$logger('container works'); |
希望本文所述对大家PHP程序设计有所帮助。
原文链接：https://blog.csdn.net/koastal/article/details/72528456
