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get_declared_interfaces

(PHP 5, PHP 7, PHP 8)

get_declared_interfaces — 返回一个数组包含所有已声明的接口

说明

get_declared_interfaces(): array

返回一个数组包含所有已声明的接口。

参数

此函数没有参数。

返回值

本函数返回一个数组，其内容是当前脚本中所有已声明的接口的名字。

示例

示例 #1 get_declared_interfaces() 示例

<?php
print_r(get_declared_interfaces());
?>

以上示例的输出类似于：

Array
(
    [0] => Traversable
    [1] => IteratorAggregate
    [2] => Iterator
    [3] => ArrayAccess
    [4] => reflector
    [5] => RecursiveIterator
    [6] => SeekableIterator
)

参见