Php/docs/function.interface-exists
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interface_exists
(PHP 5 >= 5.0.2, PHP 7)
interface_exists — Checks if the interface has been defined
Description
interface_exists
( string $interface_name
[, bool $autoload = TRUE
] ) : bool
Checks if the given interface has been defined.
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 itif (interface_exists('MyInterface')) { class MyClass implements MyInterface { // Methods }}?>
See Also
- get_declared_interfaces() - Returns an array of all declared interfaces
- class_implements() - Return the interfaces which are implemented by the given class or interface
- class_exists() - Checks if the class has been defined
