你会写注释么？从我写代码开始，这个问题就一直困扰着我，相信也同样困扰着其他同学。以前的写注释总是没有一套行之有效的标准，给维护和协同开发带了许多麻烦，直到最近读到了phpdocumentor的注释标准。

下面对phpdocumentor的注释标准进行总结：

Type（数据类型）:

1. string字符串类型
2. integer orint整型
3. boolean orbool布尔类型 true or false
4. float ordouble浮点类型
5. object对象
6. mixed混合类型没有指定类型或不确定类型时使用
7. array数组
8. resource资源类型（如数据库查询返回）
9. void空值（控制器返回值经常使用）
10. null null类型
11. callable回调函数
12. false ortrue只返回true or fasle时使用
13. self自身

Tags（标签）:

Example（示例）：

// =============================

@api

/**
  * This method will not change until a major release.
  *
  * @api
  *
  * @return void
  */
  function showVersion()
  {
     <...>
  }

// =============================

@author

/**
  * @author My Name
  * @author My Name <my.name@example.com>
  */

// =============================

@category

 /**
  * Page-Level DocBlock
  *
  * @category MyCategory
  * @package  MyPackage
  */

// =============================

@copyright

/**
  * @copyright 1997-2005 The PHP Group
  */

// =============================

@deprecated

/**
  * @deprecated
  * @deprecated 1.0.0
  * @deprecated No longer used by internal code and not recommended.
  * @deprecated 1.0.0 No longer used by internal code and not recommended.
  */
 function count()
 {
     <...>
 }

// =============================

@example

/**
  * @example example1.php Counting in action.
  * @example http://example.com/example2.phps Counting in action by a 3rd party.
  * @example "My Own Example.php" My counting.
  */
 function count()
 {
     <...>
 }

// =============================

@filesource

/**
  * @filesource
  */

// =============================

@globalphpdocumentor2.0不支持

// =============================

@ignore

if ($ostest) {
     /**
      * This define will either be 'Unix' or 'Windows'
      */
     define("OS","Unix");
 } else {
     /**
      * @ignore
      */
     define("OS","Windows");
 }

// =============================

@internal

 /**
  * @internal
  *
  * @return integer Indicates the number of items.
  */
 function count()
 {
     <...>
 }

 /**
  * Counts the number of Foo.
  *
  * {@internal Silently adds one extra Foo to compensate for lack of Foo }}
  *
  * @return integer Indicates the number of items.
  */
 function count()
 {
     <...>
 }

// =============================

@license

/**
  * @license GPL
  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  */

// =============================

@link

/**
  * @link http://example.com/my/bar Documentation of Foo.
  *
  * @return integer Indicates the number of items.
  */
 function count()
 {
     <...>
 }

/**
  * This method counts the occurrences of Foo.
  *
  * When no more Foo ({@link http://example.com/my/bar}) are given this
  * function will add one as there must always be one Foo.
  *
  * @return integer Indicates the number of items.
  */
 function count()
 {
     <...>
 }

// =============================

@method

class Parent
 {
     public function __call()
     {
         <...>
     }
 }
 
 /**
  * @method string getString()
  * @method void setInteger(integer $integer)
  * @method setString(integer $integer)
  */
 class Child extends Parent
 {
     <...>
 }

// =============================

@package

/**
  * @package PSR\Documentation\API
  */

// =============================

@param

/**
  * Counts the number of items in the provided array.
  *
  * @param mixed[] $items Array structure to count the elements of.
  *
  * @return int Returns the number of elements.
  */
 function count(array $items)
 {
     <...>
 }

// =============================

@property

class Parent
 {
     public function __get()
     {
         <...>
     }
 }
 
 /**
  * @property string $myProperty
  */
 class Child extends Parent
 {
     <...>
 }

// =============================

@property-read

class Parent
 {
     public function __get()
     {
         <...>
     }
 }
 
 /**
  * @property-read string $myProperty
  */
 class Child extends Parent
 {
     <...>
 }

// =============================

@property-write

 class Parent
 {
     public function __set()
     {
         <...>
     }
 }
 
 /**
  * @property-write string $myProperty
  */
 class Child extends Parent
 {
     <...>
 }

// =============================

@return

/**
  * @return integer Indicates the number of items.
  */
 function count()
 {
     <...>
 }

/**
  * @return string|null The label's text or null if none provided.
  */
 function getLabel()
 {
     <...>
 }

// =============================

@see

 /**
  * @see http://example.com/my/bar Documentation of Foo.
  * @see MyClass::$items           for the property whose items are counted
  * @see MyClass::setItems()       to set the items for this collection.
  *
  * @return integer Indicates the number of items.
  */
 function count()
 {
     <...>
 }

// =============================

@since

/**
  * @since 1.0.1 First time this was introduced.
  *
  * @return integer Indicates the number of items.
  */
 function count()
 {
     <...>
 }

 /**
  * @since 1.0.2 Added the $b argument.
  * @since 1.0.1 Added the $a argument.
  * @since 1.0.0
  *
  * @return void
  */
 function dump($a, $b)
 {
     <...>
 }

// =============================

@source

/**
  * @source 2 1 Check that ensures lazy counting.
  */
 function count()
 {
     if (null === $this->count) {
         <...>
     }
 }

// =============================

@subpackage

/**
  * @package PSR
  * @subpackage Documentation\API
  */

// =============================

@throws

/**
  * Counts the number of items in the provided array.
  *
  * @param mixed[] $array Array structure to count the elements of.
  *
  * @throws InvalidArgumentException if the provided argument is not of type
  *     'array'.
  *
  * @return int Returns the number of elements.
  */
 function count($items)
 {
     <...>
 }

// =============================

@todo

 /**
  * Counts the number of items in the provided array.
  *
  * @todo add an array parameter to count
  *
  * @return int Returns the number of elements.
  */
 function count()
 {
     <...>
 }

// =============================

@uses

/**
  * @uses MyClass::$items to retrieve the count from.
  *
  * @return integer Indicates the number of items.
  */
 function count()
 {
     <...>
 }

// =============================

@var

 class Counter
 {
/**
  * @var
  */
public $var;
 }

// =============================

@version

/**
  * @version 1.0.1
  */
 class Counter
 {
     <...>
 }

 /**
  * @version GIT: $Id$ In development. Very unstable.
  */
 class NeoCounter
 {
     <...>
 }

// =============================

phpdocumentor手册：http://www.phpdoc.org/docs/latest/index.html

（本人英语水平有限，如果翻译不当，请提出，定当及时修正）