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PHP - Manual: ReflectionClass::implementsInterface

2024-11-15

ReflectionClass::implementsInterface

(PHP 5, PHP 7, PHP 8)

ReflectionClass::implementsInterface接口的实现

说明

public ReflectionClass::implementsInterface(string $interface): bool

检查它是否实现了一个接口(interface)。

参数

interface

接口(interface)的名称。

返回值

成功时返回 true, 或者在失败时返回 false

参见

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User Contributed Notes 3 notes

up
2
jtunaley at gmail dot com
4 years ago
Note that this method also returns true when the thing you're reflecting is the interface you're checking for:

<?php
interface MyInterface {}

$reflect = new ReflectionClass('MyInterface');
var_dump($reflect->implementsInterface('MyInterface')); // bool(true)
?>
up
1
keepchen2016 at gmail dot com
5 years ago
interface Factory
{
    public function sayHello();
}

class ParentClass implements Factory
{
    public function sayHello()
    {
        echo "hello\n";
    }
}

class ChildrenClass extends ParentClass
{

}

$reflect = new ReflectionClass('ParentClass');
var_dump($reflect->implementsInterface('Factory'));

$second_ref = new ReflectionClass('ChildrenClass');
var_dump($second_ref->isSubclassOf('ParentClass'));

$third_ref = new ReflectionClass('Factory');
var_dump($third_ref->isInterface());

//can not be called as static
var_dump(ReflectionClass::isInterface('Factory'));
die;
//#result
bool(true)
bool(true)
bool(true)
PHP Fatal error:  Non-static method ReflectionClass::isInterface() cannot be called statically
up
0
dhairya dot coder at gmail dot com
6 years ago
//checks that whether class Fruit implements interface apple or not

interface Apple {
   
    function taste();
}

class Fruit implements Apple {
   
    function taste() {
        echo "Seet";
    }
}

$obj=new ReflectionClass('Fruit');
var_dump($obj->implementsInterface('Apple'));  //Here it will checks that whether class Fruit implements interface apple or not

官方地址:https://www.php.net/manual/en/reflectionclass.implementsinterface.php

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