get_class_methods

(PHP 4, PHP 5, PHP 7, PHP 8)

get_class_methods — 返回由类的方法名组成的数组

说明

get_class_methods(object|string $object_or_class): array

获取类的方法名称列表。

参数

object_or_class: 类名或者对象实例。

返回值

返回由 object_or_class 指定的类中定义的方法名所组成的数组。

更新日志

版本	说明
8.0.0	`object_or_class` 参数现在只接受对象或者有效的类名。

示例

示例 #1 get_class_methods() 示例

<?php

class myclass {
    // 构造方法
    function __construct()
    {
        return(true);
    }

    // 方法 1
    function myfunc1()
    {
        return(true);
    }

    // 方法 2
    function myfunc2()
    {
        return(true);
    }
}

$class_methods = get_class_methods('myclass');
// 或者
$class_methods = get_class_methods(new myclass());

foreach ($class_methods as $method_name) {
    echo "$method_name\n";
}

?>

以上示例会输出：

__construct
myfunc1
myfunc2

参见

get_class() - 返回对象的类名
get_class_vars() - 获取类的默认属性
get_object_vars() - 获取指定对象的属性

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用户贡献的备注 4 notes

down

fschmengler at sgh-it dot eu ¶

14 years ago

It should be noted that the returned methods are dependant on the current scope. See this example:

<?php
class C
{
    private function privateMethod()
    {
        
    }
    public function publicMethod()
    {
        
    }
    public function __construct()
    {
        echo '$this:';
        var_dump(get_class_methods($this));
        echo 'C (inside class):';
        var_dump(get_class_methods('C'));
    }
}
$c = new C;
echo '$c:';
var_dump(get_class_methods($c));
echo 'C (outside class):';
var_dump(get_class_methods('C'));
?>

Output:

$this:
array
  0 => string 'privateMethod' (length=13)
  1 => string 'publicMethod' (length=12)
  2 => string '__construct' (length=11)

C (inside class):
array
  0 => string 'privateMethod' (length=13)
  1 => string 'publicMethod' (length=12)
  2 => string '__construct' (length=11)

$c:
array
  0 => string 'publicMethod' (length=12)
  1 => string '__construct' (length=11)

C (outside class):
array
  0 => string 'publicMethod' (length=12)
  1 => string '__construct' (length=11)

down

polarglow06 at gmail dot com ¶

9 years ago

I have created a very simple test runner using this function

function get_bar($text) {
    $bar = "";
    for($i=1; $i<=strlen($text); $i++) {
        $bar .= "=";
    }
    return $bar;
}
class Tester {
    function __construct() {
        $this->run_tests();
    }
    // run the tests
    function run_tests() {
        print("Tester by Minhajul Anwar \n");
        $class = get_class($this);
        $test_methods = preg_grep('/^test/', get_class_methods($this));
        foreach($test_methods as $method) {
            $start_rep = "test: $class::$method";
            $bar = get_bar($start_rep);
            print("\n$start_rep\n$bar\n");
            $this->$method();
            print("\n");
        }
    }
}

now you just need to write your test class with tegst methods prefixed by 'test', and then just instantiate object of that test class of your, all those tests methods will get run automatically
The drawback is: your test methods must not accept any arguments

an example:
require '../autoload.php';
register_autoload_paths(realpath('./'));

class Test_Test extends Tester {
    function test_something() {
        print("method got executed");
    }
    function testAnotherThing() {
    print("another test method");
    }
}

$Test = new Test_Test();

down

php at stock-consulting dot com ¶

17 years ago

Note that this function will answer both class AND instance methods ("class methods" are called "static" in PHP). Sort of a little "trap" for people who have in-depth experience with the OO terminology :-)

down

faizanakram99+php at gmail dot com ¶

9 days ago

It is worth noting that get_class_methods($closure) doesn't return __invoke method even though it exists and is documented too.

See https://3v4l.org/VKjAF