interface_exists
Checks if the interface has been defined
Description
bool interface_exists
( string $interface_name
[, bool $autoload = true
] )
Parameters
-
interface_name
-
The interface name
-
autoload
-
Whether to call __autoload or not by default.
Return Values
Returns TRUE if the interface given by
interface_name has been defined, FALSE otherwise.
Examples
Example #1 interface_exists example
<?php
// Check the interface exists before trying to use it
if (interface_exists('MyInterface')) {
class MyClass implements MyInterface
{
// Methods
}
}
?>
See Also
- get_declared_interfaces
- class_implements
- class_exists