Question

我有这个脚本使用php pdo访问mysql数据库，但问题是我的托管服务提供商已禁用php pdo所以现在我卡住了，不知道如何更改此代码以访问没有php pdo的数据库：

<?php

class DbHandler {

    private $dbname='**********';
    private $host='**********';
    private $user='**********';
    private $pass='**********';
    public $dbh;
    private $sth;

    public function __construct()
    {   
        try{
            $this->dbh = new PDO("mysql:$this->host=localhost;dbname=$this->dbname", $this->user, $this->pass); 
        }
        catch(PDOException $e){
            echo 'Unable to connect to database!';
        }
    }

    //retrive all replays from db
    public function selectAll($offset, $rowsperpage){

        $this->sth=$this->dbh->query("SELECT game_id, game_title,game_date_upload,game_file_name FROM games ORDER BY game_id DESC LIMIT $offset, $rowsperpage"); 
        $this->sth->setFetchMode(PDO::FETCH_ASSOC);  
        $replays=$this->sth->fetchAll();  

        return $replays;

    }

    //return number of replays from db
    public function numOfReplays(){
        $this->sth=$this->dbh->query("SELECT game_id FROM games"); 
        $this->sth->setFetchMode(PDO::FETCH_ASSOC);  
        $replays=$this->sth->fetchAll();
        $numOfReplays=count($replays);
        return $numOfReplays;
    }

    //search db
    public function search1($search_text, $offset, $rowsperpage){
        $this->sth=$this->dbh->query("SELECT game_id, game_title,game_date_upload,game_file_name FROM games WHERE game_title LIKE '%$search_text%' ORDER BY game_id DESC LIMIT $offset, $rowsperpage"); 
        $this->sth->setFetchMode(PDO::FETCH_ASSOC);  
        $replays=$this->sth->fetchAll();  
        return $replays;
    }

    public function search($search_text, $offset, $rowsperpage){
        $search_text='%'.$search_text.'%';
        $this->sth=$this->dbh->prepare("SELECT game_id, game_title,game_date_upload,game_file_name FROM games WHERE game_title LIKE ? ORDER BY game_id DESC LIMIT $offset, $rowsperpage"); 
        $this->sth->setFetchMode(PDO::FETCH_ASSOC);  
        $this->sth->execute(array($search_text));
        $replays=$this->sth->fetchAll();  
        return $replays;
    }

    public function numOfSearchResults($search_text){
        $search_text='%'.$search_text.'%';
        $this->sth=$this->dbh->prepare("SELECT game_id FROM games WHERE game_title LIKE ?"); 
        $this->sth->setFetchMode(PDO::FETCH_ASSOC);
        $this->sth->execute(array($search_text));       
        $replays=$this->sth->fetchAll();  
        $numOfReplays=count($replays);
        return $numOfReplays;
    }

    //retrive last five uploaded replays
    public function latestReplays(){
        $this->sth=$this->dbh->query("SELECT game_title,game_file_name FROM games ORDER BY game_date_upload DESC LIMIT 2"); 
        $this->sth->setFetchMode(PDO::FETCH_ASSOC);  
        $lastReplays=$this->sth->fetchAll();  

        return $lastReplays;
    }

    //insert replay data in db
    public function exec($data=array())
    {
        $this->sth=$this->dbh->prepare("INSERT INTO games(game_title,game_description,game_file_name) values(?,?,?)");
        $this->sth->execute($data); 
    }
}


?>

我的数据库工作正常，因为我已经使用这个mysql测试脚本连接到它并且它可以工作：

<?php
mysql_connect("myhost.com", "username", "password") or die(mysql_error());
echo "Connected to MySQL<br />";
?>

我仍然是PHP的新手，这对我来说太过激进，希望有人可以提供帮助。谢谢！

Answer 1

如果您的主机已禁用PDO，我强烈建议您切换主机！

如果无法做到，可以替换mysqli *函数的PDO函数。

示例：

class DbHandler
{

  private $dbname = '**********';
  private $host = '**********';
  private $user = '**********';
  private $pass = '**********';

  public  $dbh;
  private $sth;

  public function __construct()
  {
    $this->dbh = new mysqli( $this->host, $this->user, $this->pass, $this->dbname);
  }

  ...
}

Answer 2

因为JvdBerg说您可以切换主机或更改为mysqli

这是从PDO到mysqli

的快速更改

发件人

$this->dbh = new PDO("mysql:$this->host=localhost;dbname=$this->dbname", $this->user, $this->pass);

以

$this->dbh = new mysqli($this->host,$this->user,$this->pass,$this->dbname);

和

发件人

$this->sth=$this->dbh->query("SELECT game_id, game_title,game_date_upload,game_file_name FROM games ORDER BY game_id DESC LIMIT $offset, $rowsperpage"); $this->sth->setFetchMode(PDO::FETCH_ASSOC); $replays=$this->sth->fetchAll();

以

$this->sth=$this->dbh->query("SELECT game_id, game_title,game_date_upload,game_file_name FROM games ORDER BY game_id DESC LIMIT $offset, $rowsperpage"); $replays=$this->sth->fetch_all(MYSQLI_ASSOC);

冲洗，起泡，重复其余的课程方法

如何在不使用PHP PDO的情况下访问MYSQL数据库？

2 个答案: