multi_query not working when creating registers on tables - mysqli

Question

The thing is that I'm trying to create multiple tables with multi_query and right after two registers in two of those tables. When I run the code the tables are created in the DB but the registers cannot be created. Te thing is that when I do everything with a simple query then the code works perfectly. I don't know what I'm missing here... here is the code:
if (isset($_POST['usercp']) && !empty($_POST['usercp'])) {
if (isset($_POST['passlogin']) && !empty($_POST['passlogin'])) {
$conn = mysqli_connect($host, $user, $pw, $db);
if (!$conn) {
echo "<script language='javascript'>alert('Usuario de CPanel incorrecto!!');window.location.href = 'http://here-a-page.com/';</script>";
}
else {
$sql = "CREATE TABLE usercp (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
usuario VARCHAR(30) NOT NULL
);";
$sql = $sql . "CREATE TABLE numlink (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
Link VARCHAR(30) NOT NULL
);";
$sql = $sql . "CREATE TABLE login (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
Validacion_Pass VARCHAR(30) NOT NULL
);";
$file = fopen("UsuarioCpanel.txt", "w");
fwrite($file, $UserCp . PHP_EOL);
fclose($file);
if ($conn->multi_query($sql)) {
$PassLogin = $_POST['passlogin'];
$consulta = " INSERT INTO usercp(usuario) VALUES('$UserCp');";
$consulta = $consulta . "INSERT INTO login(Validacion_Pass) VALUES('$PassLogin');";
if ($conn->multi_query($consulta)) {
header('location: index.php');
}
else{
echo "Ocurrio un error creando los registros";
}
}
else{
echo "Error creating table: " . $conn->error;
}
}
}
else{
echo "<script language='javascript'>alert('Debes poner el Password que utilizaras con el Login del Cloaking System');window.location.href = 'http://here-a-page.com/';</script>";
}
}
else {
echo "<script language='javascript'>alert('Debes poner tu Usuario de CPanel');window.location.href = 'http://here-a-page.com/';</script>";
}
I've found a solution to my problem in a question similar to mine. #furas solved this problem with a "while(){}" after every multi_query you want to do. For some reason multi_query can't be run more than once naturally. To do that you need to write this lines after every multi_query:
while( mysqli_more_results($link) ){
$result = mysqli_store_result($link);
mysqli_next_result($link);
}

Answer 1

I've found a solution to my problem in a question similar to mine. #furas solved this problem with a "while(){}" after every multi_query you want to do. For some reason multi_query can't be run more than once naturally. To do that you need to write this lines after every multi_query:
while( mysqli_more_results($link) ){
$result = mysqli_store_result($link);
mysqli_next_result($link);
}