在另一个公共函数中使用一个公共函数

Question

The title may not make sense, not sure how to word it. Anyways, i'm practicing curl and OOP at the same time here with the riot games API. the API is kind of set up dumb where some info you want to request requires input that you wouldn't know off hand, so it requires another separate call to get the required info first.

class league
{
    const URL = 'http://prod.api.pvp.net/api/lol/na/v1.1/';
    const URL_2 = 'http://prod.api.pvp.net/api/lol/na/v2.1/';
    const KEY = 'key';

    public function summonerByName($summoner_name)
    {
        $request = 'summoner/by-name/' . $summoner_name . '?api_key =' . self::KEY;
        return $this->fetch($request);
    }

    public function recentGamesByName($summoner_name)
    {
        //need to make two calls for this since you cant get recent games by name in the api

        $id = summonerByName($summoner_name);

        //now get recent games
        $request = 'game/by-summoner/' . $id->id . '/recent';
        return $this->fetch($request);
    }   


    private function fetch($request)
    {
        $url = self::URL . $request . '?api_key=' . self::KEY;
        $curl = curl_init($url);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        $data = curl_exec($curl);
        curl_close($curl);
        return json_decode($data);
    }
}

this is returning Fatal error: Call to undefined function summonerbyname()

if i use all this extra code below in the public function recentGamesByName() instead of $id = summonerByName() it works fine, but it seems unnecessary, and i want to replace that with just the function.

$grg = self::URL . 'summoner/by-name/' . $summoner_name . '?api_key=' . self::KEY;
$placeholder = curl_init($grg);
curl_setopt($placeholder, CURLOPT_RETURNTRANSFER, 1);
$ph_result = curl_exec($placeholder);
curl_close($placeholder);
$ph_result = json_decode($ph_result);

Answer 1

$id = $this->summonerByName($summoner_name);

You may want to read up on OOP.