我一直在爲最後2個小時努力尋找爲什麼我得到這個錯誤,但我仍然卡住!我已經在這裏檢查了答案,但仍然沒有。CodeIgniter PHP未定義變量錯誤
檢查類似的線程後,我似乎無法找到一個解決方案
幫助將不勝感激
錯誤信息:遇到
一個PHP錯誤
嚴重性:注意
消息:未定義的變量:UPGRADES
文件名:觀點/ test.php的
行號:207
型號:
<?php
if(!defined('BASEPATH')) exit('Hacking Attempt: Get out of the system ..!');
class M_live extends CI_Model {
function M_live(){
parent::Model();
function getUpgrades(){
$this->db->select("*");
$this->db->from('client_trust_versions')
$query = $this->db->get();
return $query->result_array();
}
}
}
?>
控制器:
<?php
if(!defined('BASEPATH')) exit('Hacking Attempt: Get out of the system ..!');
class C_Live extends CI_Controller
{
function C_Live(){
parent::__construct();
$this->load->model('M_live');
}
public function index(){
$query = $this->M_live->getUpgrades();
$data['UPGRADES'] = null;
if($query){
$data['UPGRADES'] = $query;
}
$this->load->view('Test', $data);
}
}
?>
查看:
<table>
<tr>
<th>ID</th>
<th>Client Name</th>
<th>App Server</th>
<th>Instance Name</th>
<th>BankStaff Server</th>
<th>SQL Server</th>
<th>Instance</th>
<th>Health Roster Version</th>
<th>Employee Online Version</th>
<th>Roster Perform</th>
<th>BankStaff Version</th>
<th>SafeCare Version</th>
<th>E-Expenses</th>
</tr>
<?php foreach((array)$UPGRADES as $upgrades){?>
<tr><td><?php=$upgrade->ID;?></td>
<td><?php=$upgrade->Client_Name;?></td>
<td><?php=$upgrade->App_Server;?></td>
<?php }?>
可能重複[PHP:「注意:未定義的變量」和「注意:未定義的索引」](http://stackoverflow.com/questions/4261133/php-notice-undefined -variable-and-notice-undefined-index) – Qirel
那麼我猜查詢不會返回結果。要測試用$ data ['UPGRADES'] = array();'替換'$ data ['UPGRADES'] = null;'它應該可以工作 – Steve
如果你看一下變量名,你可以使用'foreach'語句中'$ upgrades',但裏面有'$ upgrade'。 – Qirel