lib/SteamCondenser/Community/SteamId.php
public function getSteamId64() {
        if (empty($this->steamId64)) {
            $this->steamId64 = self::resolveVanityUrl($this->customUrl);
        }

        return $this->steamId64;
    }
public function getSteamId64() {
        if (empty($this->steamId64)) {
            $this->steamId64 = self::resolveVanityUrl($this->customUrl);
        }

        return $this->steamId64;
    }
Returns this user's 64bit SteamID

If the SteamID is not known yet it is resolved from the vanity URL.

@return string This user's 64bit SteamID
@see resolveVanityUrl