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PHP | ReflectionClass getInterfaceNames() Function

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The ReflectionClass::getInterfaceNames() function is an inbuilt function in PHP which is used to return an array of interface names as values. Syntax:
array ReflectionClass::getInterfaceNames( void )
Parameters: This function does not accept any parameters. Return Value: This function returns an array of interface names as values. Below programs illustrate the ReflectionClass::getInterfaceNames() function in PHP: Program 1:
<?php
  
// Defining some interfaces
interface Colleges { }
interface Departments { }
interface Students { }
interface Companies { }
  
// Initialising a class of Interfaces
class Interfaces implements Colleges, Departments, Students, Companies { }
  
// Using ReflectionClass over the class Interfaces
$A = new ReflectionClass("Interfaces");
  
// Calling the getInterfaceNames() function
$B = $A->getInterfaceNames();
  
// Getting the name of the specified Interfaces
print_r($B);
?>

                    
Output:
Array
(
    [0] => Colleges
    [1] => Departments
    [2] => Students
    [3] => Companies
)
Program 2:
<?php
   
// Using ReflectionClass 
$ReflectionClass = new ReflectionClass('ReflectionClass');
   
// Calling getInterfaceNames() functions
$A = $ReflectionClass->getInterfaceNames();
   
// Getting the name of the interfaces
var_dump($A);
?>

                    
Output:
array(1) {
  [0]=>
  string(9) "Reflector"
}
Reference: https://www.php.net/manual/en/reflectionclass.getinterfacenames.php

Last Updated : 30 Nov, 2019
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