get_parent_class
As far as I remember interface_exists() was added in 5.0.2 . In 5.0.0 and 5.0.1 class_exists() used to return TRUE when asked for a existing interface. Starting 5.0.2 class_exists() doesn't do that anymore.
interface_exists
(PHP 5 >= 5.0.2)
interface_exists — Checa se a interface foi definida
Descrição
bool interface_exists
( string $interface_name
[, bool $autoload
] )
Verifica se uma interface foi definida.
Valor Retornado
Essa função retorna TRUE se a interface de nome interface_name já foi definida, FALSE caso contrário.
Exemplos
Exemplo #1 Exemplo de uso de interface_exists()
<?php
// Check the interface exists before trying to use it
if (interface_exists('MyInterface')) {
class MyClass implements MyInterface
{
// Methods
}
}
?>
add a note
User Contributed Notesinterface_exists
andrey at php dot net
24-Oct-2004 01:40
24-Oct-2004 01:40