PHP类（Zend Framework）中的返回错误

我在应用程序中使用ZF1，要生成报告，我的应用程序将返回一个错误：

我搜索了一下，但没有发现语法错误。你看到我班上的“return”有什么问题吗

我是这样做的：

/application/models/DbTable/Pac.php

class Application_Model_DbTable_Pac extends Fits_Db_Table
{
    protected $_name = 'pac';
    protected $_validate_fields = array (
        'name',
    );
    public function getReport($month) {
    $subselect = $this->select()
        ->from(['o'=>'orcamento'], ['pac_id'])
        ->join(['op' => 'orcamento_procedimento'], 'o.orcamento_id = op.orcamento_id', '')
        ->where('op.orcamento_procedimento_status_id = 4')
        ->where('op.especialidade = 5')
        ->where('op.deleted = 0')
        ->where('op.data_execucao >= DATE_SUB(NOW, INTERVAL '.$month.' MONTH)');
    $select = $this->select()
        ->from('pac')
        ->where('ort_status_id = 2')
        ->where('pac_id NOT IN '.$subselect)
        ->order('name ASC');
        return $this->fetchResult($select);   //Line 51 informed in the error
    }
...

class Default_PacController extends Fits_Controller_Action
{
   public function reportAction() {
        $this->_breadcrumb = array(
            array('Home', '/', ''),
            array('Pac', '', 'active'),
        );
        $this->_sessao = 1.4;
        $dbPac = new Application_Model_DbTable_Pac();
    $month = 1;
        $report = $dbPac->getReport($month);
        $this->view->pac = $report;
    }
...

/application/modules/default/controllers/PacController.php

class Application_Model_DbTable_Pac extends Fits_Db_Table
{
    protected $_name = 'pac';
    protected $_validate_fields = array (
        'name',
    );
    public function getReport($month) {
    $subselect = $this->select()
        ->from(['o'=>'orcamento'], ['pac_id'])
        ->join(['op' => 'orcamento_procedimento'], 'o.orcamento_id = op.orcamento_id', '')
        ->where('op.orcamento_procedimento_status_id = 4')
        ->where('op.especialidade = 5')
        ->where('op.deleted = 0')
        ->where('op.data_execucao >= DATE_SUB(NOW, INTERVAL '.$month.' MONTH)');
    $select = $this->select()
        ->from('pac')
        ->where('ort_status_id = 2')
        ->where('pac_id NOT IN '.$subselect)
        ->order('name ASC');
        return $this->fetchResult($select);   //Line 51 informed in the error
    }
...

class Default_PacController extends Fits_Controller_Action
{
   public function reportAction() {
        $this->_breadcrumb = array(
            array('Home', '/', ''),
            array('Pac', '', 'active'),
        );
        $this->_sessao = 1.4;
        $dbPac = new Application_Model_DbTable_Pac();
    $month = 1;
        $report = $dbPac->getReport($month);
        $this->view->pac = $report;
    }
...

/application/modules/default/views/scripts/pac/relat.phtml

...
            <tr>
                <th style="width:50%">Name</th>
                <th style="width:14%">Last time</th>
            </tr>
            </thead>
            <tbody>
            <?foreach($this->relat as $v){?>
            <tr>
                 <td style="vertical-align: middle"><?=isset($this->dados['ort_pac_name'])?></td>
                 <td style="vertical-align: middle" class="text-center"><?=$v['name']?></td>
                 </td>
                 </tr>
            <?}?>
...

。。。
名称
上次
...

什么是完整的异常堆栈跟踪？此堆栈跟踪可能包含发生错误的来源。嗨，Marcel，当我在mysql中遇到错误时，堆栈跟踪刚刚为我返回。当我注释这一行（->order（'name ASC'）；）p.ex时，只显示上面历史记录中显示的错误。异常信息：Message:SQLSTATE[42000]：语法错误或访问冲突：1064您的SQL语法有错误；检查与您的MySQL服务器版本对应的手册，以了解在日志文件的第1行堆栈跟踪：#0/var/www/html/library/Zend/Db/Statement.php（300）：Zend_Db_Statement_Pdo->_execute（Array）…使用near'）ORDER BY

nome

ASC'的正确语法。。[Thu Apr 01 09:13:27.228547 2021][php7:emerg][pid 21373][client 127.0.0.1:52526]PHP解析错误：语法错误，第51行/var/www/html/application/models/DbTable/Pac.PHP中出现意外的“return”（T_return），请参考：我们找到了来源。您的sql查询字符串无效。尝试输出完整的sql查询字符串并研究它。我的第一个猜测是：您缺少子查询周围的括号。