php系统转换的三种方式（PHP容器类的两种实现方式示例）

php系统转换的三种方式

PHP容器类的两种实现方式示例

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

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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

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$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

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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

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$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

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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

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$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