Saves methods result on memory. Needs to be private or protected to work. Public methods will never be saved in memory.

memorize.php

<?php
namespace App;

trait Memorize
{
    /**
     * @var array [method][parameters]
     */
    private $memorizedResults = [];

    protected function memorizedCall($methodName, $args = null)
    {
        $serializedArgs = md5(\serialize($args));
        if (! isset($this->memorizedResults[$methodName][$serializedArgs])) {
            $this->memorizedResults[$methodName][$serializedArgs] = $this->$methodName(...$args);
        }
        return $this->memorizedResults[$methodName][$serializedArgs];
    }

    public function __call($name, $args)
    {
        return $this->memorizedCall($name, $args);
    }
}