PHP ReflectionClass getParentClass()用法及代碼示例

ReflectionClass::getParentClass()函數是PHP中的內置函數，用於返回指定的父類；如果不存在父類，則返回false。

用法:

ReflectionClass ReflectionClass::getParentClass ( void )

參數：該函數不接受任何參數。

返回值：此函數返回指定的父類；如果不存在父類，則返回false。

以下示例程序旨在說明PHP中的ReflectionClass::getParentClass()函數：
示例1:

<?php 
   
// Defining a class named as College 
class College { 
       
    // Defining a protected property 
    protected $College_Name = 'IIT Delhi'; 
} 
   
// Defining a sub class Departments of the  
// base class College 
class Departments extends College { 
    public $Dept1 = 'CSE'; 
    private $Dept2 = 'ECE'; 
    public static $Dept3 = 'EE'; 
} 
   
// Using ReflectionClass over sub class Departments 
$ReflectionClass = new ReflectionClass('Departments'); 
   
// Getting the name of the parent class 
var_dump($ReflectionClass->getParentClass()); 
?>

輸出：

object(ReflectionClass)#2 (1) {
  ["name"]=>
  string(7) "College"
}

示例2:

<?php 
   
// Defining a class named as College 
class College { 
       
    // Defining a protected property 
    protected $College_Name = 'IIT Delhi'; 
} 
   
// Using ReflectionClass over the class College 
$ReflectionClass = new ReflectionClass('College'); 
   
// Getting the name of the parent class 
var_dump($ReflectionClass->getParentClass()); 
?>

輸出：

bool(false)

參考： https://www.php.net/manual/en/reflectionclass.getparentclass.php

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注：本文由純淨天空篩選整理自Kanchan_Ray大神的英文原創作品 PHP | ReflectionClass getParentClass() Function。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。