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PHP ReflectionClass getDefaultProperties () function

Syntax:
ReflectionClass::getDefaultProperties (void): array 
Parameters:this function takes no parameters .Return Value:This function returns an array of default properties. These properties have space for property keys and values. Key - this is the name of the property, and the values ​​- this is the default. And also returns NULL if the property has no default values.The following programs illustrate the ReflectionClass::getDefaultProperties() function in PHP:
Program 1:  
// Definition of a class named College class College { // Protected Property Definition protected $College_Name = ’IIT Delhi’ ; }  
// Define the subclass Departments
// base college class class Departments extends College { public $Dept1 = ’CSE’ ; private $Dept2 = ’ECE’ ; public static $Dept3 = ’EE’ ; }  
// Using ReflectionClass over the Departments subclass $ReflectionClass = new ReflectionClass ( ’Departments’ );  
// Get an array of default properties var_dump ( $ReflectionClass -> getDefaultProperties()); ?>
Output:
array (4) {["Dept3"] = > string (2) "EE" ["Dept1"] = > string (3) "CSE" ["Dept2"] = > string (3) "ECE" ["College_Name"] = > string (9) "IIT Delhi"} 
Program 2:  
// Definition of a class named College class College {   // Define the protected property protected $College_Name = ’IIT Delhi’ ; }  
// Define the subclass Departments
// base college class class Departments extends College { public $Dept1 ; private $Dept2 ; public static $Dept3 ; }  
// Using ReflectionClass over the Departments subclass $ReflectionClass = new ReflectionClass ( ’Departments’ );  
// Get an array of default properties var_dump ( $ReflectionClass -> getDefaultProperties()); ?>
Output:
array (4) {["Dept3"] = > NULL ["Dept1"] = > NULL ["Dept2"] = > NULL ["College_Name"] = > string (9) "IIT Delhi"} 
Link: https : //www.php.net/manual/en/reflectionclass.getdefaultproperties.php

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