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classclass MagicContainer{ private $ele; function __construct()

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]);    }  }}

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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');

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通过ArrayAccess接口实现

class

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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]);    }  }}

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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');

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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]);    }  }}

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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');

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希望本文所述对大家PHP程序设计有所帮助。