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我不斷收到錯誤與標題在這裏的錯誤...我弄不明白爲什麼發生這種情況。我花了大約一個小時左右的時間來開始工作和nadda。mysqli :: select_db():無法在C: xampp htdocs includes class siteHeader.php中獲取第26行的siteHeader
<?php
class siteHeader extends siteSetting
{
public $html;
public $pid;
function __construct()
{
parent::__construct();
$this->pid = $_GET['pid'];
$this->html .= "<body>";
$this->html .="<div id='site_header'>";
$this->constructHeader();
$this->constructMenu();
$this->html .="</div>";
$this->html .= "</body>";
echo $this->html;
}
function constructHeader()
{
$this->html .= '<h1>'.SITE_NAME.'</h1>';
}
function constructMenu()
{
parent::select_db('thc_settings');
$que = parent::query('SELECT * FROM pages');
$row = $que->fetch_array();
echo $row[0];
}
}
什麼用select_db定義父類()方法是什麼樣子? – CXJ