PHP | ReflectionClass isAbstract() Function

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

Syntax:

bool ReflectionClass::isAbstract( 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::isAbstract() function in PHP:



Program 1:

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<?php
  
// Defining a abstract class abstractGFG
abstract class abstractGFG {}
   
// Using ReflectionClass over the above 
// abstractGFG class
$Class = new ReflectionClass('abstractGFG');
   
// Calling isAbstract() function
$A = $Class->isAbstract();
   
// Getting the value either true or false
var_dump($A);
?>

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Output:

bool(true)

Program 2:

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<?php
   
// Defining a user-defined class Company
class Company {
    Public Function GeeksforGeeks() {}
    Private Function GFG() {}
}
   
// Using ReflectionClass over the above 
// Company class
$Class = new ReflectionClass('Company');
   
// Calling isAbstract() function
$A = $Class->isAbstract();
   
// Getting the value either true or false
var_dump($A);
?>

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Output:

bool(false)

Reference: https://www.php.net/manual/en/reflectionclass.isabstract.php

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