How to get the name of the current function?

Question

Good evening. I wonder if there’s any way to get the name of the function being used, like this:

public function nome_funcao(){ 

    $nome_funcao = $this -> "nome_funcao";

}

I don’t know if I was clear, but I want to redeem the name of the function within the function I’m using. Is it possible?

Answer 1

__FUNCTION__

As of version 4.3.0 of PHP there is a magic constant __FUNCTION__ that makes exactly this function:

class Foo {
    public function method()
    {
        echo __FUNCTION__ ;
    }
}

$f = new Foo();
$f->method();

The code above returns method. See working on Repl.it or in the Ideone.

__METHOD__

There is still the constant __METHOD__, from version 5.0.0 of PHP, which can be used next to classes and the difference from it to __FUNCTION__ is that __METHOD__ returns the class name as well.

class Foo {
    public function method()
    {
        echo __METHOD__ ;
    }
}

$f = new Foo();
$f->method();

The exit will be:

Foo::method

Including the class name Foo.

It is interesting to note that when the executed method is inherited from a parent class, the class name returned by __METHOD__ will also be of the parent class, as this is where the method is defined.

class Bar
{
  public function method()
  {
    echo __METHOD__;
  }
}

class Foo extends Bar {}

$foo = new Foo();
$foo->method();

The exit will be Bar::method even if the object is an instance of Foo.