创建数据库，表和txt文件导入-但没有执行，也没有抛出任何错误

Question

我有一些代码应该用于： 1.创建一个数据库 2.在该数据库中创建一个表 3.将文本文件导入表中

我使用的代码可以运行，但不会给我任何错误或显示任何结果。

这是我的代码：

<?php
$conn = mysqli_connect('localhost','root');

if (!$conn) {
    die(mysqli_error());
} 

$sql = "CREATE DATABASE monthlyresultDB";

$sql = "CREATE TABLE month1(
week1 INT(4),
week2 INT(4),
week3 INT(4),
week4 INT(4)
)";

$open = fopen('/xampp/htdocs/month1.txt','r');

while (!feof($open)) 
{
    $getTextLine = fgets($open);
    $explodeLine = explode(',',$getTextLine);
    if (count($explodeLine) !=16) {
        continue;
    }

    list($week1,$week2,$week3,$week4) = $explodeLine;

    $qry = "insert into month1 (week1,week2,week3,week4) values($week1 . ',' . $week2. ',' .$week3. ',' .$week4.)";
    mysqli_query($conn,$qry);
}

?>