-1
我得到了致命錯誤:在第19行的/config/mySQL_class.php中找不到類'mysqli' 我測試了我的代碼,但似乎無法找到解決我的問題的方法,我只是一個剛開始嘗試OOP的初學者程序員。有任何想法嗎?在OOP中找不到屬性
<?php
class Database
{
public $data;
public $mysqli;
public function __construct($host, $username, $password, $database){
$this->mysqli = new mysqli($host, $username, $password, $database);
if(mysqli_connect_errno()){
echo "Error: Could not connect to database.";
exit;
}
}
public function __destruct(){
$this->mysqli->close();
}
public function read(){
$sql = "SELECT * FROM `user` ";
$result = $this->mysqli->query($query);
$num_result = $result->num_rows;
if($num_result>0)
{
while($rows=$result->fetch_assoc()){
$this->data[]=$rows;
}
} else {
return $this->data;
}
}
}
?>
使用
include('config/mySQL_class.php');
$obj=new Crud("localhost","root","","crud");
$obj->read();
<table width="500" border="1" cellpadding="5">
<tr>
<th width="16" scope="row">id</th>
<td width="95">name</td>
<td width="140">email</td>
<td width="104">address</td>
<td width="71">Mobile</td>
<td>action</td>
</tr>
<?php
foreach($obj->data as $val){
extract($val);
?>
<tr>
<td scope="row"><?php echo $id; ?></td>
<td><?php echo $name; ?></td>
<td><?php echo $email; ?></td>
<td><?php echo $address; ?></td>
<td><?php echo $mob; ?></td>
<td><a href="edit.php?id=<?php echo $id; ?>">edit</a>|<a href="delete.php?id=<?php echo $id; ?>">Delete</a></td>
</tr>
<?php
}
?>
這可能意味着'mysqli'沒有安裝在你的PHP版本中?參見['phpinfo()'](http://php.net/phpinfo); – deceze
我在phpinfo()上找不到mysqli; @deceze有一件事,我可以使用mysql而不是mysqli?謝謝 – Jason