php - MySQL 不查询

Question

记录器显示我已连接到数据库，但我无法正确查询或添加表，因为我收到“主表失败”然后“玩家不在数据库中”然后“无法添加条目”然后“当我加入游戏时，“玩家不在数据库中”，因此这显然是我的 MySQL 方面的错误。如果有人能指出我正确的方向，那就太好了!

<?php

namespace gladiusdata;

use pocketmine\plugin\PluginBase;
use pocketmine\level\particle\FloatingTextParticle;
use pocketmine\math\Vector3;
use pocketmine\utils\TextFormat;
use gladiusinfo\AnnounceTask;
use gladiusinfo\gladiusinfo;
use pocketmine\utils\Config;
use pocketmine\event\Listener;
use pocketmine\event\player\PlayerJoinEvent;

class Main extends PluginBase implements Listener
{
    private $db;

    public function onEnable()
    {
        $this->getServer()->getPluginManager()->registerEvents($this, $this);

        $user = /*username*/;
        $pass = /*password*/;
        $server = /*server*/;
        $database = /*database*/;
        $port = /*port*/;

        $this->db = @mysqli_connect($server, $user, $pass, $database, $port);
        if(!$this->db)
        {
            $this->getServer()->getLogger()->info(TextFormat::RED . "Did not work");
        } else {
            $this->getServer()->getLogger()->info(TextFormat::GREEN . "Worked!");
        }

        if($this->db->query("CREATE TABLE IF NOT EXISTS master (player TEXT PRIMARY KEY COLLATE NOCASE, rank TEXT, bal INTEGER);"))
        {
            $this->getServer()->getLogger()->info(TextFormat::GREEN . "Created master table");
        } else {
            $this->getServer()->getLogger()->info(TextFormat::RED . "Master table failed");
        }
    }

    public function onPlayerJoin(PlayerJoinEvent $pje)
    {
        $this->insert($pje->getPlayer()->getName());
    }

    public function insert($player, $rank = "none", $bal = 0)
    {
        if(!$this->playerExists($player))
        {;
            $sql = "INSERT INTO master (player, rank, bal) VALUES ($player,                 $rank, $bal)";
            if($this->db->query($sql))
            {
                $this->getServer()->getLogger()->info(TextFormat::GREEN . "Added new entry successfully");
            } else {
                $this->getServer()->getLogger()->info(TextFormat::RED . "Could not add entry");
            }
        }
        $this->playerExists($player);
    }

    public function playerExists($player)
    {
        $result = $this->db->query("SELECT * FROM master WHERE player='$player'");
        if($result)
        {
            $this->getServer()->getLogger()->info(TextFormat::GREEN . "Player is in database!");
        } else {
            $this->getServer()->getLogger()->info(TextFormat::RED . "Player is not in database!");
        }
    }
}

Answer 1

您的表未创建，因为 TEXT 列设置为主键。您不能将 TEXT 列设置为主键。错误是

ERROR 1170 (42000): BLOB/TEXT column 'name' used in key specification without a key length

有关更多信息，请参阅链接-

MySQL error: key specification without a key length

MySQL error: key specification without a key length