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:

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<?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);
?>

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Output:

bool(true)

Program_2:

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<?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());
?>

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Output:

bool(true)

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

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