INTERFACE_EXISTS(3) 1 INTERFACE_EXISTS(3)
interface_exists - Checks if the interface has been defined
SYNOPSIS
bool interface_exists (string $interface_name, [bool $autoload = true])
DESCRIPTION
Checks if the given interface has been defined.
PARAMETERS
o $interface_name
- The interface name
o $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(3) 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(3), class_implements(3), class_exists(3).
PHP Documentation Group INTERFACE_EXISTS(3)
