Java類反射應(yīng)用得非常廣泛幾乎是所有框架的最核心部分，php程序員似乎從不關(guān)心反射。嘗試著用Java的思想去理解php的反射，跟Java基本上基本一致。參考了php手冊：http://www.php.NET/manual/zh/book.reflection.php。

ReflectTest.php:

<?php class ReflectTest {     /**     * 用戶ID     */    private $userId;     /**     * 用戶名     */    private $userName;     /**     * 用戶密碼     */    private $password;     /**     * 用戶郵箱     */    private $email;     /**     * 用戶QQ號碼     */    private $qq;     /**     * 登陸次數(shù)     */    private $loginTimes;     public function ReflectTest(){     }     public function __construct($userId,$userName,$password){        $this->userId = $userId;        $this->userName = $userName;        $this->password = $password;    }     /**     *     * @return the $userId     */    public function getUserId() {        return $this->userId;    }     /**     *     * @return the $userName     */    public function getUserName() {        return $this->userName;    }     /**     *     * @return the $password     */    public function getPassword() {        return $this->password;    }     /**     *     * @return the $email     */    public function getEmail() {        return $this->email;    }     /**     *     * @return the $qq     */    public function getQq() {        return $this->qq;    }     /**     *     * @return the $loginTimes     */    public function getLoginTimes() {        return $this->loginTimes;    }     /**     *     * @param field_type $userId                 */    public function setUserId($userId) {        $this->userId = $userId;    }     /**     *     * @param field_type $userName               */    public function setUserName($userName) {        $this->userName = $userName;    }     /**     *     * @param field_type $password               */    public function setPassword($password) {        $this->password = $password;    }     /**     *     * @param field_type $email              */    public function setEmail($email) {        $this->email = $email;    }     /**     *     * @param field_type $qq                 */    public function setQq($qq) {        $this->qq = $qq;    }     /**     *     * @param field_type $loginTimes                 */    public function setLoginTimes($loginTimes) {        $this->loginTimes = $loginTimes;    }}?>

Test.php:

<?php  require_once 'ReflectTest.php';  $ref = new ReflectTest("1", "admin", "admin888");//實(shí)例化ReflectTest  echo "<h1>ReflectTest init.</h1><br/>UserId:".$ref->getUserId()."<br/>UserName:".$ref->getUserName()."<br/>Password:".$ref->getPassword();  $class = new ReflectionClass('ReflectTest');//反射加載ReflectTest類  $instance = $class->newInstanceArgs(array('123','root','123456'));//ReflectTest初始化   echo "<h1>Field:</h1><br/>";  $field = $class->getProperties();  foreach($field as $f) {    echo $f->getName()."<br/>";//反射輸出所有的成員變量  }   echo "<h1>get Fields DocComment:</h1><br/>";  foreach($field as $f) {    $docComment = $f->getDocComment();//反射輸出所有成員變量的文檔注釋    echo $docComment."<br/>";  }   $method = $class->getMethods();//獲取ReflectTest所有方法  echo "<h1>get Methods DocComment:</h1><br/>";  foreach($method as $m) {    $docComment = $m->getDocComment();//獲取所有方法的文檔注釋    echo $docComment."<br/>";   }   echo "<h1>get Methods:</h1><br/>";  foreach($method as $m) {    $k = "get";//只調(diào)ReflectTest中的所有的get方法    echo $m->getName()."=".($k === "" || strpos ( $m->getName (), $k ) === 0?$m->invoke($instance):"")."<br/>";    if("setQq"==$m->getName()){      $m->invoke($instance,'441637262');//調(diào)用setQq方法為ReflectTest當(dāng)中的成員變量qq設(shè)值    }  }   echo "<h1>Invoke (set/get)Qq result:</h1><br/>";  $qq=$class->getmethod('getQq');//獲取getQq方法  echo "getQQ:".$qq->invoke($instance)."<br/>";//獲取成員變量qq的值  echo "jb51.NET";?>

請求http://localhost/php/test/Test.php輸出結(jié)果：

ReflectTest init. UserId:1UserName:adminPassword:admin888Field: userIduserNamepasswordemailqqloginTimesget Fields DocComment: /** * 用戶ID *//** * 用戶名 *//** * 用戶密碼 *//** * 用戶郵箱 *//** * 用戶QQ號碼 *//** * 登陸次數(shù) */get Methods DocComment: /** * * @return the $userId *//** * * @return the $userName *//** * * @return the $password *//** * * @return the $email *//** * * @return the $qq *//** * * @return the $loginTimes *//** * * @param field_type $userId *//** * * @param field_type $userName *//** * * @param field_type $password *//** * * @param field_type $email *//** * * @param field_type $qq *//** * * @param field_type $loginTimes */get Methods: ReflectTest=__construct=getUserId=123getUserName=rootgetPassword=123456getEmail=getQq=getLoginTimes=setUserId=setUserName=setPassword=setEmail=setQq=setLoginTimes=Invoke (set/get)Qq result: getQQ:441637262jb51.NET

php技術(shù)：PHP中的reflection反射機(jī)制測試?yán)?/a>，轉(zhuǎn)載需保留來源！