PHP | Reflection getNamespaceName() Function

Last Updated : 17 Dec, 2019
The Reflection::getNamespaceName() function is an inbuilt function in PHP which is used to return the name of the specified namespace. Syntax: 
string Reflection::getNamespaceName( void )
Parameters: This function does not accept any parameters. Return Value: This function returns the name of the specified namespace. Below programs illustrate the Reflection::getNamespaceName() function in PHP: Program 1: php 
<?php

// Defining a namespace and class GFG
namespace A\B;
class GFG{ } 
 
// Using ReflectionClass over the namespace and
// specified class GFG
$ReflectionClass = new \ReflectionClass('A\\B\\GFG');
 
// Calling getNamespaceName() function 
$A = $ReflectionClass->getNamespaceName();
 
// Getting the name of the specified namespace
var_dump($A);
?>
Output: 
string(3) "A\B"
Program 2: php 
<?php
  
// Using ReflectionClass over the inbuilt class 'ReflectionClass'
$ReflectionClass = new ReflectionClass('ReflectionClass');
  
// Calling getNamespaceName() function 
$A = $ReflectionClass->getNamespaceName();
  
// Getting the name of the namespace
var_dump($A);
?>
Output: 
string(0) ""
Reference: https://www.php.net/manual/en/reflectionclass.getnamespacename.php
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