试图创建MySQL数据库，不知道为什么没有出现在phpmyadmin上

Question

我一直在玩我的PHP编码一段时间了。我试图上传芝加哥熊队名单，以便我以后可以在网页上显示，但我无法让我的代码真正上传excel表到MySQL。

我有运行MySQL和APache的XAMPP。这是我的代码：

           $db_roster = mysqli_connect("localhost", "root", "");
        if (!$db_roster)
        die("Unable to connect: " . mysqli_connect_error());  // die is similar to exit


       //creating the database
        if (isset($_GET["button"])){
             //If create database is clicked
            if( $_GET["button"] == "create"){
                if (mysqli_query($db_roster, "CREATE DATABASE finalRoster;")){
                    echo "The database is created <br>"; //Database is created
//                else
//                    echo "unable to create database: " . mysqli_error($db_roster) . "<br>";

                mysqli_select_db($db_roster, "finalRoster");

                $cmd = "CREATE TABLE sportDatabase ( number int(2) NOT NULL PRIMARY KEY,
                        playerName char(50),
                        position varchar(2),
                        height char(3),
                        weight int(3),
                        age int(2),
                        experience int(2),
                        collegeName char(60)
                        );";         //Creates the table

                    echo "The Database is Ready<br>";
                }
            }
            mysqli_query($db_roster, $cmd);

            $cmd = "LOAD DATA LOCAL INFILE 'bearsRoster.csv' INTO TABLE clist FIELDS TERMINATED BY ',';"; 

            mysqli_query($db_roster, $cmd);

            echo "<h1>Sports contents</h1>";
            $cmd = "SELECT * FROM sportDatabase";
            $records = mysqli_query($db_roster, $cmd);
            while($row = mysqli_fetch_array($records))
                echo( "\t\t" . $row['number'] . $row['playerName'] . $row['position'] . $row['height']  . 
                     $row['weight']. $row['age'] . $row['experience'] . $row['collegeName'] . PHP_EOL );

            mysqli_close($db_roster);