Reflection reflection mechanism test example in PHP, phpreflection_PHP tutorial

Test example of reflection mechanism in PHP, phpreflection

Java class reflection is widely used and is almost the core part of all frameworks. PHP programmers never seem to care about reflection. Try to use Java ideas to understand PHP's reflection, which is basically the same as Java. Refer to the php manual: http://www.php.net/manual/zh/book.reflection.php.

ReflectTest.php:

<&#63;php
 
class ReflectTest {
 
    /**
     * 用户ID
     */
    private $userId;
 
    /**
     * 用户名
     */
    private $userName;
 
    /**
     * 用户密码
     */
    private $password;
 
    /**
     * 用户邮箱
     */
    private $email;
 
    /**
     * 用户QQ号码
     */
    private $qq;
 
    /**
     * 登陆次数
     */
    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;
    }
}
&#63;>

Test.php:

<&#63;php
  require_once 'ReflectTest.php';
  $ref = new ReflectTest("1", "admin", "admin888");//实例化ReflectTest
  echo "<h1 id="ReflectTest-init">ReflectTest init.</h1><br/>UserId:".$ref->getUserId()."<br/>UserName:".$ref->getUserName()."<br/>Password:".$ref->getPassword();
  $class = new ReflectionClass('ReflectTest');//反射加载ReflectTest类
  $instance = $class->newInstanceArgs(array('123','root','123456'));//ReflectTest初始化
 
  echo "<h1 id="Field">Field:</h1><br/>";
  $field = $class->getProperties();
  foreach($field as $f) {
    echo $f->getName()."<br/>";//反射输出所有的成员变量
  }
 
  echo "<h1 id="get-Fields-DocComment">get Fields DocComment:</h1><br/>";
  foreach($field as $f) {
    $docComment = $f->getDocComment();//反射输出所有成员变量的文档注释
    echo $docComment."<br/>";
  }
 
  $method = $class->getMethods();//获取ReflectTest所有方法
  echo "<h1 id="get-Methods-DocComment">get Methods DocComment:</h1><br/>";
  foreach($method as $m) {
    $docComment = $m->getDocComment();//获取所有方法的文档注释
    echo $docComment."<br/>";
 
  }
 
  echo "<h1 id="get-Methods">get Methods:</h1><br/>";
  foreach($method as $m) {
    $k = "get";//只调ReflectTest中的所有的get方法
    echo $m->getName()."=".($k === "" || strpos ( $m->getName (), $k ) === 0&#63;$m->invoke($instance):"")."<br/>";
    if("setQq"==$m->getName()){
      $m->invoke($instance,'441637262');//调用setQq方法为ReflectTest当中的成员变量qq设值
    }
  }
 
  echo "<h1 id="Invoke-set-get-Qq-result">Invoke (set/get)Qq result:</h1><br/>";
  $qq=$class->getmethod('getQq');//获取getQq方法
  echo "getQQ:".$qq->invoke($instance)."<br/>";//获取成员变量qq的值
  echo "jb51.net";
&#63;>

Request http://localhost/php/test/Test.php output result:

ReflectTest init.
 
UserId:1
UserName:admin
Password:admin888
Field:
 
userId
userName
password
email
qq
loginTimes
get Fields DocComment:
 
/** * 用户ID */
/** * 用户名 */
/** * 用户密码 */
/** * 用户邮箱 */
/** * 用户QQ号码 */
/** * 登陆次数 */
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=123
getUserName=root
getPassword=123456
getEmail=
getQq=
getLoginTimes=
setUserId=
setUserName=
setPassword=
setEmail=
setQq=
setLoginTimes=
Invoke (set/get)Qq result:
 
getQQ:441637262
jb51.net

Detailed explanation of Java Reflection (JAVA reflection) mechanism

The score reversal has started again, is it interesting?

What is the reflection mechanism of PHP

It can also be called mapping. To put it bluntly, it can not only clone objects, but also call variables and even methods of objects, which is quite powerful. PHP API5 has an explanation about objects. You can read it if you have a chance. It is similar to the one in

java. Of course, this feature is enough to prove that there is a big difference between php and asp!

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www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/858746.htmlTechArticleTest examples of reflection mechanism in PHP, phpreflection Java class reflection is widely used and is almost the core of all frameworks Partly, PHP programmers never seem to care about reflection. Try...