php database queries in foreach and optimization - php

Question

I am creating a multilingual website and I want to display a different data for each country.
So i already had created script which determines the language and origin of the user and I need to load data from 3 databases on the website in foreach function.
I had 3 database
listFrom, listFromCountryCode, listFromLang
listFrom:
id, prefix, status
listFromCountryCode:
id, idList, countryCode, status,
listFromTranslate:
id, idList, name, langCode, status
currently, to get this data I need to do a loop for listFromCountryCode and listFrom to get prefix. I came up with some optimizations such as use INNER JOIN in query. I cant connect these database in one piece because prefix for other countries is the same. I haven't done this code yet because at the beginning I wanted to ask more experienced developers for advice on how to optimize it. I know that the use of a loop for database queries is bad but I have no idea for another solution.
Update
Already created script and time-tested so when in table is more elements (100) site loaded in 3s. Normal script without that script loaded in 0.46s. Anyone got any idea how to optimize this script?
public function checkCountryCodeList()
{
$sql = "SELECT COUNT(*) FROM listFromCountryCode WHERE countryCode = :code AND status = :status";
$array = array(':code' => $this->countryCode, ':status' => $this->status);
$result = $this->db->selectCount($sql, $array);
if($result > 0){
return true;
}else{
return false;
}
}
public function getCountryCodeList()
{
$sql = "SELECT idList
FROM listFromCountryCode
WHERE countryCode = :code";
$array = array(':code' => $this->countryCode);
$result = $this->db->select($sql, $array);
return $result;
}
public function getList()
{
if(!$this->checkCountryCodeList()){
$this->countryCode = DEFAULT_COUNTRYCODE;
}
$countryCodeList = $this->getCountryCodeList();
$data = array();
foreach($countryCodeList as $row){
$sql = "SELECT listFrom.prefix, listFromTranslation.name
FROM listFrom, listFromTranslation
WHERE listFrom.id = listFromTranslation.idList
AND listFrom.id = :id
And listFromTranslation.langCode = :code";
$array = array(
':id' => $row['idList'],
':code' => $this->langCode
);
$result = $this->db->select($sql, $array);
$data[] = ['name' => $result[0]['name'], 'prefix' => $result[0]['prefix']];
}
return $data;
}
Update
Some example data
listFrom
| id | prefix |status |
|--- | ------ |-------|
| 1 | btc |1 |
| 2 | psc |1 |
listFromCountryCode
| id | idList |countryCode |status |
|--- | ------ |------------|------ |
| 1 | 1 |de |1 |
| 2 | 2 |de |1 |
listFromTranslate
| id | idList| name |langCode |status |
|--- | ------| ----------- |---------|------ |
| 1 | 1 | bitcoin |en |1 |
| 2 | 2 | paysafecard |en |1 |