The ReflectionClass::implementsInterface() function is an inbuilt function in PHP which is used to check the specified interface is present or not.
Syntax:
bool ReflectionClass::implementsInterface( string $interface )
Parameters: This function accepts a single parameter $interface which holds the specified interface which are being checked.
Return Value: This function returns true on success or false on failure.
Below programs illustrate the ReflectionClass::implementsInterface() 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 implementsInterface() function // over the Interface 'Colleges' $B = $A ->implementsInterface( 'Colleges' );
// Getting the value true or false var_dump( $B );
?> |
Output:
bool(true)
Program 2:
<?php // Defining a SuperClass interface Company interface Company {
public function GFG();
} // Defining a different interface Company1 interface Company1 {
public function GeeksforGeeks();
} // Defining a subclass Departments class Departments implements Company {
public function GFG() {}
} // Using ReflectionClass() over the // subclass Departments $reflect = new ReflectionClass( 'Departments' );
// Calling implementsInterface() function $A = $reflect ->implementsInterface( 'Company1' );
// Getting the value either true or false var_dump( $A );
?> |
Output:
bool(false)
Reference: https://www.php.net/manual/en/reflectionclass.implementsinterface.php