ReflectionClass
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ReflectionClass::getInterfaceNames

(PHP 5 >= 5.2.0)

ReflectionClass::getInterfaceNames — Gets the interface names

说明

public array ReflectionClass::getInterfaceNames ( void )

Get the interface names.

参数

此函数没有参数。

返回值

A numerical array with interface names as the values.

范例

Example #1 ReflectionClass::getInterfaceNames() example

<?php
interface Foo { }

interface Bar { }

class Baz implements Foo, Bar { }

$rc1 = new ReflectionClass("Baz");

print_r($rc1->getInterfaceNames());
?>

以上例程的输出类似于：

Array
(
    [0] => Foo
    [1] => Bar
)

参见

ReflectionClass
在线手册：中文 英文
PHP手册
PHP手册 - N: Gets the interface names

用户评论:

pinpin (27-Mar-2011 12:11)

It seems the interface names are actually listed in a defined order:
- "extends" takes precedence over "implements" (i.e. first will be interfaces from (implemented in) the parent class (if any), then interfaces implemented in the class itself)
- when multiple interfaces are implemented at one time/level, it can be:
+ from an "implements" : they're listed in the defined order
+ from an "extends" (a class extends another class which implements multiple interfaces; or an interface extends multiple interfaces) : they're listed in REVERSE order

<?php
interface Foo {}
interface Bar {}
interface Other {}
interface Foobar extends Foo, Bar {}
interface Barfoo extends Bar, Foo {}

class Test1 implements Foo, Bar {}
class Test2 implements Bar, Foo {}

class Test3 extends Test1 {}
class Test4 extends Test2 {}

class Test5 extends Test1 implements Other {}

class Test6 implements Foobar, Other {}
class TestO implements Other {}
class Test7 extends TestO implements Barfoo {}

$r=new ReflectionClass('Test1');
print_r($r->getInterfaceNames()); // Foo, Bar

$r=new ReflectionClass('Test2');
print_r($r->getInterfaceNames()); // Bar, Foo

$r=new ReflectionClass('Test3');
print_r($r->getInterfaceNames()); // Bar, Foo

$r=new ReflectionClass('Test4');
print_r($r->getInterfaceNames()); // Foo, Bar

$r=new ReflectionClass('Test5');
print_r($r->getInterfaceNames()); // Bar, Foo, Other

$r=new ReflectionClass('Test6');
print_r($r->getInterfaceNames()); // Foobar, Bar, Foo, Other

$r=new ReflectionClass('Test7');
print_r($r->getInterfaceNames()); // Other, Barfoo, Foo, Bar
?>