PHP Magic Constants Tutorial

<?php

namespace Busayo;

class MagicConstants
{

    public function getFile()
    {
        return __FILE__;
    }

    public function getDirectory()
    {
        return __DIR__;
    }

    public function getTrait()
    {
        return __TRAIT__;
    }

    public function getNamespace()
    {
        return __NAMESPACE__;
    }

    public function getLine()
    {
        return __LINE__;
    }

    public function getMethod()
    {
        return __METHOD__;
    }

    public function getClass()
    {
        return __CLASS__;
    }

    public function getFunction()
    {
        return __FUNCTION__;
    }
}

$app = new MagicConstants;
echo $app->getFile(). PHP_EOL;
echo $app->getDirectory(). PHP_EOL;
echo $app->getTrait(). PHP_EOL;
echo $app->getNamespace(). PHP_EOL;
echo $app->getLine(). PHP_EOL;
echo $app->getMethod(). PHP_EOL;
echo $app->getClass(). PHP_EOL;
echo $app->getFunction(). PHP_EOL;