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PHP | ReflectionMethod invoke() Function
  • Last Updated : 17 Dec, 2019

The ReflectionMethod::invoke() function is an inbuilt function in PHP which is used to invoke the specified reflected method and returns the result of the mothod.

Syntax:

public mixed ReflectionMethod::invoke ( $object, $parameter )

Parameters: This function accepts two parameters which are illustrated below:

  • object: This is the initialized class object.
  • parameter: This is the zero or more parameters to be passed to the method.

Return Value: This function returns the result of the invoked method.

Below programs illustrate the ReflectionMethod::invoke() function in PHP:
Program_1:



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<?php
  
// Initializing a user-defined class
class Company {
  
    public function GFG($name) {
        return 'GeeksforGeeks' . $name;
    }
}
  
// Using ReflectionMethod() over the class Company
$A = new ReflectionMethod('Company', 'GFG');
  
// Calling the invoke() function
$B = $A->invoke(new Company(), 
          ' is a Computer Science Portal.');
  
// Getting the result of the invoked method.
echo $B;
?>

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Output:

GeeksforGeeks is a Computer Science Portal.

Program_2:

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<?php
   
// Initializing some user-defined classes
class Department1 {
   
    public function hr($name) {
        return 'HR' . $name;
    }
}
class Department2 {
   
    public function coding($name) {
        return 'Coding' . $name;
    }
}
class Department3 {
   
    public function marketing($name) {
        return 'Marketing' . $name;
    }
}
  
// Using ReflectionMethod() over the above classes
$A = new ReflectionMethod('Department1', 'hR');
$B = new ReflectionMethod('Department2', 'coding');
$C = new ReflectionMethod('Department3', 'marketing');
   
// Calling the invoke() function and 
// getting the result of the invoked method.
echo $A->invoke(new Department1(), ' is a Department.');
echo "\n";
echo $B->invoke(new Department2(), ' is also a Department.');
echo "\n";
echo $C->invoke(new Department3(), ' too.');
?>

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Output:

HR is a Department.
Coding is also a Department.
Marketing too.

Reference: https://www.php.net/manual/en/reflectionmethod.invoke.php,




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