PHP | ReflectionExtension isPersistent() Function

The ReflectionExtension::isPersistent() function is an inbuilt function in PHP which is used to return true if the specified extension is persistent, otherwise return false. Syntax:

void ReflectionExtension::isPersistent( void )

Parameters: This function does not accept any parameter. Return Value: This function returns true if the specified extension is persistent, otherwise return false. Below programs illustrate the ReflectionExtension::isPersistent() function in PHP: Program_1: php

<?php

// Defining an extension
$A = 'DOM';

// Using ReflectionExtension() over the 
// specified extension
$extension = new ReflectionExtension($A);

// Calling the isPersistent() function
$B = $extension->isPersistent();

// Getting the value either true or false
var_dump($B);
?>

Program_2: php

<?php

// Using ReflectionExtension() over 
// an extension xml
$extension = new ReflectionExtension('xml');

// Calling the isPersistent() function and
// Getting the value either true or false
var_dump($extension->isPersistent());
?>

Reference: https://www.php.net/manual/en/reflectionextension.ispersistent.php