我正在尝试将数组作为参数传递给我的存储过程。但我没有得到预期的结果。
我试着从点击按钮的视图向控制器发送电子邮件和id的列表，然后我试着通过将该列表作为参数传递给我的存储过程从数据库中获取数据。
这是我的密码：
查看：

<form action="<?= base_url('certificate/sendMail') ?>" method="post">
    <table id="example1" class="table table-striped table-bordered" cellspacing="0" width="100%">
        <thead>
            <tr>
                <th>Mail</th>
            </tr>
        </thead>
        <tfoot>
            <tr>
                <th style="text-align: center;">
                    <input type="submit" name="submit" value="Send" class="send btn btn-primary btn-xs" disabled="" />
                </th>
            </tr>
        </tfoot>
        <tbody>
            <tr>
                <td style="text-align: center;">
                    <input type="checkbox" class="checkbox" name="sendMail[]" value="<?= $certify->landlord_main_email; ?>">
                </td>   
            </tr>
        </tbody>
    </table>
</form>

在这里，我得到的电子邮件和身份证清单通过复选框。
控制器：

public function sendMail($certID)
    {
        # code...

        if(isset($_POST['submit'])){//to run PHP script on submit
            if(!empty($_POST['sendMail'])){
            // Loop to store and display values of individual checked checkbox.
                foreach($_POST['sendMail'] as $selected){
                    //echo $selected."</br>";
                }
            }
        }
        $result['certMails'] = $this->c->getCertificateByEmail($certID);
        $email_to = $this->input->post('sendMail[]');
        $body = $this->load->view('Emails/emailAll', '', true);
    }

在这里，我试图获得数据，并将其发送到电子邮件模板视图。
型号：

public function getCertificateByEmail($certID)
    {
        # code...
        $query = $this->db->query("call getCertificateByEmail($certID)");

        if ($query) {
            $data = $query->result();
            $query->next_result(); 
            $query->free_result();
            return $data;
        } else {
            return false;
        }
    }

存储过程：

DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `Certificate_By_Email`(IN `certID` INT)
BEGIN
SELECT `cert_id`, `cert_user_id`, `cert_landlord_id`,
        tbl_landlord.landlord_id, tbl_landlord.landlord_main_email, 
        `cert_property_id`, tbl_property.property_code, 
        tbl_property.property_city,  tbl_property.property_cluster, 
        tbl_cluster.cluster_name, `cert_status`, `cert_number`, 
        tbl_certificates.certificate_name, `cert_issue_date`, 
        `cert_expiry_date`, `cert_duration`, `cert_updated_date`, 
        `cert_remarks`, `cert_notes` 
FROM `tbl_certificate_details` 
    LEFT OUTER JOIN tbl_landlord ON  tbl_certificate_details.cert_landlord_id = tbl_landlord.landlord_id 
    LEFT OUTER JOIN tbl_property ON tbl_certificate_details.cert_property_id = tbl_property.property_id 
    LEFT OUTER JOIN tbl_certificates ON tbl_certificate_details.certificate_id = tbl_certificates.certificate_id 
    LEFT OUTER JOIN tbl_cluster ON tbl_property.property_cluster = tbl_cluster.cluster_id 
    LEFT OUTER JOIN tbl_area ON tbl_property.property_area = tbl_area.area_name 
WHERE FIND_IN_SET(cert_id, certID);
END$$
DELIMITER ;

欢迎任何帮助，提前谢谢。