数据库<> PHP通信脚本不工作

-1

所以我得到了这段代码，它是一个PHP脚本，它将我的数据库与我的应用程序进行通信。但是，不知何故，更新功能根本不起作用，我无法弄清楚什么是错误的 - 虽然我99％肯定它不是应用程序本身。数据库<> PHP通信脚本不工作

这里是整个PHP素文字

<?php 

class DataBase 
{ 
    private $server; 
    private $user; 
    private $password; 
    private $database; 

    function __construct($server, $user, $password, $database) 
    { 
     $this->server = $server; 
     $this->user = $user; 
     $this->password = $password; 
     $this->database = $database; 
    } 

    private function connect() 
    { 
     $connect = mysqli_connect($this->server, $this->user, $this->password) or die('Error, no se ha podido conectar.'); 
     mysqli_select_db($connect, $this->database); 

     return $connect; 
    } 

    private function diconnect($connect) 
    { 
     return mysqli_close($connect); 
    } 

    private function wheres($wheres) 
    { 
     $w = ''; 

     foreach ($wheres as $where => $key) 
     { 
      $w .= ' `'.$where.'` = "'.$key.'"'; 
     } 

     return $w; 
    } 

    private function sets($sets) 
    { 
     $w = ''; 

     foreach ($sets as $set => $key) 
     { 
      $w .= ' `'.$set.'` = "'.$key.'",'; 
     } 

     return substr($w, 0, -1); 
    } 

    public function select($table, $wheres = null) 
    { 
     $connect = $this->connect(); 

     if ($wheres == null) 
     { 
      $query = mysqli_query($connect, 'SELECT * FROM `'.$table.'`'); 
     } else { 
      $query = mysqli_query($connect, 'SELECT * FROM `'.$table.'` WHERE '.$this->wheres($wheres)); 
     } 

     $i = 0; 
     $ret = array(); 

     while ($row = mysqli_fetch_assoc($query)) { 
      foreach ($row as $key => $value) { 
       $ret[$i][$key] = $value; 
      } 

      $i++; 
     } 

     return ($ret); 
    } 

    public function insert($table, $inserts) 
    { 
     $connect = $this->connect(); 
     $values = array_values($inserts); 

     $keys = array_keys($inserts); 

     return $query = mysqli_query($connect, 'INSERT INTO `'.$table.'` (`'.implode('`,`', $keys).'`) VALUES (\''.implode('\',\'', $values).'\')'); 
    } 

    public function delete($table, $wheres = null) 
    { 
     $connect = $this->connect(); 

     if ($wheres == null) 
     { 
      return $query = mysqli_query($connect, 'DELETE FROM `'.$table.'`'); 
     } else { 
      return $query = mysqli_query($connect, 'DELETE FROM `'.$table.'` WHERE '.$this->wheres($wheres)); 
     } 
    } 

    public function update($table, $id, $sets = null) 
    { 
     $connect = $this->connect(); 

     return $query = mysqli_query($connect, 'UPDATE `'.$table.'` SET'.$this->sets($sets).' WHERE `id` = "'.$id.'"'); 
    } 

} 

if (!empty($_POST)) 
{ 
    if (isset($_POST['method'])) 
    { 
     if (isset($_POST['table'])) 
     { 
      $DataBase = new DataBase('127.0.0.1', 'root', 'password', 'coord_tic'); 

      switch ($_POST['method']) 
      { 
       case 'insert': 
        $inserts = $_POST; 
        unset($inserts['table']); 
        unset($inserts['method']); 
        echo json_encode($DataBase->insert($_POST['table'], $inserts)); 
        break; 

       case 'delete': 
        $wheres = $_POST; 
        unset($wheres['table']); 
        unset($wheres['method']); 
        echo json_encode($DataBase->delete($_POST['table'], $wheres)); 
        break; 

       case 'select': 
        $wheres = $_POST; 
        unset($wheres['table']); 
        unset($wheres['method']); 
        echo json_encode($DataBase->select($_POST['table'], $wheres)); 
        break; 

       case 'update': 
        $wheres = $_POST; 
        unset($wheres['table']); 
        unset($wheres['method']); 
        unset($wheres['id']); 
        echo json_encode($DataBase->update($_POST['table'], $_POST['id'], $wheres)); 
        break; 

       default: 
        echo json_encode(false); 
        break; 
      } 
     } else { 
      echo json_encode(false); 
     } 
    } else { 
     echo json_encode(false); 
    } 
} else { 
    echo json_encode(false); 
}

我真的希望你能帮助我，因为我的工作依赖于现在这些权利，

非常感谢！

来源

2016-03-08 marsh

你有没有做过任何调试？像echo'ing你的查询，看看它是否会直接在phpmyadmin/mysql中执行？ – Epodax

提示：在这里倾倒160行代码，希望有人会发现它们的错误不是这是如何工作的... – deceze

问题是这是由一些不是朋友写的，不再是兄弟，我有点依赖于这个但实际上我对PHP一无所知......我知道这不是最好的方式，我不想传播我的戏剧，但我需要帮助：P – marsh

您的代码在简单情况下工作。

测试代码：

// ddl for x table is 
// create table x (id int, val int); 
$DataBase = new DataBase('127.0.0.1', 'root', 'password', 'test'); 
var_dump($DataBase->insert('x', array('id' => 8, 'val' => 13))); 
var_dump($DataBase->select('x', array('id' => 8))); 
var_dump($DataBase->update('x', 8, array('val' => 25))); 
var_dump($DataBase->select('x', array('id' => 8)));

输出：

bool(true) 
array(1) { 
    [0]=> 
    array(2) { 
    ["id"]=> 
    string(1) "8" 
    ["val"]=> 
    string(2) "13" 
    } 
} 
bool(true) 
array(1) { 
    [0]=> 
    array(2) { 
    ["id"]=> 
    string(1) "8" 
    ["val"]=> 
    string(2) "25" 
    } 
}

您应该添加测试数据，该数据不适合你的工作。例如，更新不起作用的数据结构和POST-数据。

来源

2016-03-08 10:26:44

数据库<> PHP通信脚本不工作

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