Question

以下查询包含加密的患者姓名字段：

SELECT 
    patient.patient_id as patient_id2,

    CONVERT(aes_decrypt(patient_name_en, :encKey) using utf8mb4) as patient_name_en2,

    visit.visit_id as visit_id,

    visit.date_of_visit as date_of_visit,

    medication.med_name as med_name,

    consultation_med.medication_collector as medication_collector,

    consultation_med.given_quantity as given_quantity,

    (SELECT 
        sum(consultation_med.given_quantity)

    FROM 

        med_pharmacy

    LEFT JOIN 

        medication

    ON

        med_pharmacy.med_id=medication.med_id

    LEFT JOIN 

        consultation_med

    ON 

    consultation_med.med_pharmacy_id=med_pharmacy.med_pharmacy_id

    LEFT JOIN

    consultation 

    ON 

        consultation.consultation_id=consultation_med.consultation_id

    LEFT JOIN

        visit
    ON
        visit.visit_id = consultation.visit_id

    LEFT JOIN

        patient
    ON 

        patient.patient_id = visit.patient_id

    WHERE med_pharmacy.med_id=:mid) as sumGiven

FROM 

    med_pharmacy

LEFT JOIN 

    medication

ON 

    med_pharmacy.med_id=medication.med_id

LEFT JOIN 

    consultation_med

ON 

    consultation_med.med_pharmacy_id=med_pharmacy.med_pharmacy_id
LEFT JOIN
    consultation 
ON 
    consultation.consultation_id=consultation_med.consultation_id
LEFT JOIN
    visit
ON
    visit.visit_id = consultation.visit_id
LEFT JOIN 
    patient
ON 
    patient.patient_id = visit.patient_id
WHERE 
    med_pharmacy.med_id=:mid
    and
    med_pharmacy.clinic_id=:cid
    and
    visit.visit_status = :visitStatus

ORDER BY
    visit.date_of_visit DESC

在MySQL中运行此查询时，我可以看到患者的姓名。但是当我将数据作为JSON数组从PHP脚本发送到Ajax时，患者名称在网络选项卡返回的数组和屏幕上显示为null。

这是PHP文件：

<?php
error_reporting(E_ALL);
ini_set("display_errors", 1);
require_once('connection.php');
header('Content-type: application/json');
$cid = $_SESSION['clinic_id'];
$mid = $_POST['mid'];
$encKey = ...//
$res_distribution = array();

$getMedicationsDist = "SELECT 
    patient.patient_id as patient_id2,
    CONVERT(aes_decrypt(patient_name_en, :encKey) using utf8mb4) as patient_name_en2,
    visit.visit_id as visit_id,
    visit.date_of_visit as date_of_visit,
    medication.med_name as med_name,
    consultation_med.medication_collector as medication_collector,
    consultation_med.given_quantity as given_quantity,
    (SELECT 
        sum(consultation_med.given_quantity)
    FROM 
        med_pharmacy
    LEFT JOIN 
        medication
    ON
        med_pharmacy.med_id=medication.med_id
    LEFT JOIN 
        consultation_med
    ON 
    consultation_med.med_pharmacy_id=med_pharmacy.med_pharmacy_id
    LEFT JOIN
    consultation 
    ON 
    consultation.consultation_id=consultation_med.consultation_id
    LEFT JOIN
    visit
    ON
    visit.visit_id = consultation.visit_id
    LEFT JOIN 
    patient
    ON 
    patient.patient_id = visit.patient_id
    WHERE med_pharmacy.med_id=:mid) as sumGiven
FROM 
    med_pharmacy
LEFT JOIN 
    medication
ON 
    med_pharmacy.med_id=medication.med_id
LEFT JOIN 
    consultation_med
ON 
    consultation_med.med_pharmacy_id=med_pharmacy.med_pharmacy_id
LEFT JOIN
    consultation 
ON 
    consultation.consultation_id=consultation_med.consultation_id
LEFT JOIN
    visit
ON
    visit.visit_id = consultation.visit_id
LEFT JOIN 
    patient
ON 
    patient.patient_id = visit.patient_id
WHERE 
    med_pharmacy.med_id=:mid
    and
    med_pharmacy.clinic_id=:cid
    and
    visit.visit_status = :visitStatus

ORDER BY
    visit.date_of_visit DESC";
$execGetMedicationsDist = $conn->prepare($getMedicationsDist);
$execGetMedicationsDist->bindValue(":visitStatus", "Active");
$execGetMedicationsDist->bindValue(":encKey", $mid);
$execGetMedicationsDist->bindValue(":mid", $mid);
$execGetMedicationsDist->bindValue(":cid", $cid);
$execGetMedicationsDist->execute();
//$getExecGetMedications = $execGetMedications->fetchAll();
$i=0;
foreach($execGetMedicationsDist as $var2)
{
    $res_distribution[$i]=$var2;
    $i++;
}

echo json_encode($res_distribution);

?>

和AJAX电话：

            $.ajax({
                url: '../php/getMedicationDistributionReport.php',
                type: 'POST',
                data: {mid: searchTxt},
                dataType: 'JSON',
                success:function(resp2)
                {
                    //append data

                    $("#med_table_distribution tr").fadeOut(400);
                    $("#med_table_distribution #after_tr_distribution").before("<tr class='bg-info'><th colspan='10' style='text-align: center'>Patient who received this medication =</th></tr><tr><th>Patient ID</th><th colspan='3'>Patient Name</th><th>Visit ID</th><th>Date of Visit</th><th colspan='2'>Medication Name</th><th>Collector</th><th>Quantity Given</th></tr>");
                    $.each( resp2, function(key, result2)
                    {
                        //var pid = result['patient_id'];
                        var sumGiven = parseInt(result2['sumGiven']);
                        //var profileBtn = "<a id='profileBtn'><span class='badge badge badge-info' style='background-color: #0090ff'>Patient Profile</span></a>"
                        $("#after_tr_distribution").after("<tr id="+result2['patient_id']+"><td>"+result2['patient_id2']+"</td><td colspan='3'>"+result2['patient_name_en2']+"</td><td>"+result2['visit_id']+"</td><td>"+result2['date_of_visit']+"</td><td colspan='2'>"
                            +result2['med_name']+"</td><td>"+result2['medication_collector']+"</td><td>"
                            +result2['given_quantity']+"</td></tr>");
                    });

                    //console.log(sumGiven);
                },
                error:function(resp2)
                {
                    console.log(resp2);
                }

            })

Answer 1

您的错误位于

foreach($execGetMedicationsDist as $var2)
{
    $res_distribution[$i]=$var2;
    $i++;
}

应该是

while($var2 = $execGetMedicationsDist->fetch(PDO::FETCH_ASSOC))
{
    $res_distribution[]=$var2;
}

因为$execGetMedicationsDist是PDOStatement object我已经删除$i++，因为您不再使用它而不是必需的。有关PDO::fetch

的更多信息

查询显示mysql中的值，但在HTML页面中显示为null

1 个答案: