update : 2015.11.03
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Checks if method is defined
ReflectionClass
PHP Manual

ReflectionClass::hasMethod

(PHP 5 >= 5.1.0)

ReflectionClass::hasMethod — Checks if method is defined

설명

public bool ReflectionClass::hasMethod ( string $name )

Checks whether a specific method is defined in a class.

인수

name

Name of the method being checked for.

반환값

TRUE if it has the method, otherwise FALSE

예제

Example #1 ReflectionClass::hasMethod() example

<?php
Class C {
    public function publicFoo() {
        return true;
    }

    protected function protectedFoo() {
        return true;
    }

    private function privateFoo() {
        return true;
    }

    static function staticFoo() {
        return true;
    }
}

$rc = new ReflectionClass("C");

var_dump($rc->hasMethod('publicFoo'));

var_dump($rc->hasMethod('protectedFoo'));

var_dump($rc->hasMethod('privateFoo'));

var_dump($rc->hasMethod('staticFoo'));

// C should not have method bar
var_dump($rc->hasMethod('bar'));

// Method names are case insensitive
var_dump($rc->hasMethod('PUBLICfOO'));
?>

위 예제의 출력:

bool(true)
bool(true)
bool(true)
bool(true)
bool(false)
bool(true)

참고

ReflectionClass
PHP Manual