accessor sample

accessor.php

<?php

/**
 * Class Test
 * @method $this setVar1(string $var1)
 * @method $this getVar1()
 * @method string getVar2()
 */
class Test
{
    use AccessorTrait;

    /**
     * @var string
     */
    protected $var1;

    /**
     * @var string
     */
    protected $var2;

    /**
     * @param string $var2
     * @return $this
     */
    public function setVar2($var2)
    {
        $this->var2 = $var2;

        return $this;
    }
}

trait AccessorTrait
{
    /**
     * @param string $name
     * @param array $arguments
     */
    final public function __call($name, array $arguments = array())
    {
        $prefix = substr($name, 0, 3);
        $variable = lcfirst(substr($name, 3));

        if(property_exists(get_class($this), $variable)) {
            if($prefix === 'set') {
                if(count($arguments) !== 1) {
                    throw new \InvalidArgumentException("Magic setters need one argument!");
                }
                $this->$variable = $arguments[0];

                return $this;
            } elseif($prefix === 'get') {
                if(count($arguments) !== 0) {
                    throw new \InvalidArgumentException("Magic getters need no argument!");
                }

                return $this->$variable;
            }
        }

        throw new \InvalidArgumentException("Method does not exists!");
    }
}

$test = new Test();

$test
    ->setVar1('var1')
    ->setVar2('var2')
;

$test->setVar1('var1');
$test->setVar2('var2');

var_dump($test->getVar1());
var_dump($test->getVar2());