PHP | ReflectionMethod getPrototype() Function

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The ReflectionMethod::getPrototype() function is an inbuilt function in PHP which is used to return the prototype of the specified method otherwise, an exception/error is returned if the method does not have a prototype.

Syntax:

ReflectionMethod ReflectionMethod::getPrototype( void )

Parameters: This function does not accept any parameter.

Return Value: This function returns the prototype of the specified method otherwise, an exception/error is returned if the method does not have a prototype.

Below programs illustrate the ReflectionMethod::getPrototype() function in PHP:
Program 1:

<?php 
   
// Initializing a user-defined class Department1 
class Department1 { 
   
    public function Marketing_Dpt() { 
        return 'Department1'; 
    } 
} 
   
// Initializing a subclass of the above class Department1 
class Department2 extends Department1{ 
   
    public function Marketing_Dpt() { 
        return 'Department2'; 
    } 
   
} 
  
// Again Initializing a subclass of the above subclass Department2 
class Department3 extends Department2{ 
   
    public function Coding_Dpt() { 
        return 'Department3'; 
    } 
   
} 
   
// Using the ReflectionMethod() over the above  
// subclass Department2 
$A = new ReflectionMethod('Department3', 'Marketing_Dpt'); 
   
// Calling the getPrototype() function 
$B = $A->getPrototype(); 
   
// Getting the prototype  
var_dump($B); 
?> 

Output:

object(ReflectionMethod)#2 (2) {
  ["name"]=>
  string(13) "Marketing_Dpt"
  ["class"]=>
  string(11) "Department1"
}

Program 2:

<?php 
  
// Initializing a user-defined class 
class Company { 
  
    protected function zambiatek($name) { 
        return 'GFG' . $name; 
    } 
} 
  
// Using ReflectionMethod() over the class Company 
$A = new ReflectionMethod('Company', 'zambiatek'); 
  
// Calling the getPrototype() function 
$B = $A->getPrototype(); 
  
// Getting the prototype or an error is returned 
// if the method does not have a prototype. 
var_dump($B); 
?> 

Output: Method does not have any prototype that will give you an error.

PHP Fatal error: Uncaught ReflectionException: Method Company::
zambiatek does not have a prototype in 
/home/9d8367b263ee4d7ec6941876b0eae792.php:15
Stack trace:
#0 /home/9d8367b263ee4d7ec6941876b0eae792.php(15): 
ReflectionMethod->getPrototype()
#1 {main}
  thrown in /home/9d8367b263ee4d7ec6941876b0eae792.php on line 15

Reference: https://www.php.net/manual/en/reflectionmethod.getprototype.php

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