PHP | ReflectionClass isFinal() Function

The ReflectionClass::isFinal() function is an inbuilt function in PHP which is used to check the specified class is final or not.

Syntax:

bool ReflectionClass::isFinal( void )

Parameters: This function does not accept any parameters.

Return Value: This function returns true for the success or false on failure.

Below programs illustrate the ReflectionClass::isFinal() function in PHP:
Program 1:



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<?php
  
// Defining a non final class
class GFG {}
  
// Defining a final class
final class GeeksforGeeks {}
  
// Using ReflectionClass over the 
// Non final class GFG
$B = new ReflectionClass('GFG');
  
// Calling the isFinal() function
$C = $B->isFinal();
  
// Getting the value true or false
var_dump($C);
  
?>

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Output:

bool(false)

Program 2:

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<?php
  
// Defining a non final class
class GFG {}
  
// Defining a final class
final class GeeksforGeeks {}
  
// Using ReflectionClass over the 
// final class GeeksforGeeks
$B = new ReflectionClass('GeeksforGeeks');
  
// Calling the isFinal() function
$C = $B->isFinal();
  
// Getting the value true or false
var_dump($C);
  
?>

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Output:

bool(true)

Reference: https://secure.php.net/manual/en/reflectionclass.isfinal.php




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