我正在开展学生出勤标记工作。我想为此目的使用AJAX,但无法将数据插入数据库。以下是我的代码: -
HTML:
<a id="Present" href="#" class="btn btn-md btn-success" onClick="Present(<?php echo $id_1; ?>);">Present</a><br/><br/>
使用Javascript:
<script>
function Present(Pid){
var Pyear = <?php echo $selected_year; ?>;
var Pmonth = "<?php echo $selected_month; ?>";
var Pday = <?php echo $selected_day; ?>;
var Pdate = "<?php echo $selected_date; ?>";
$.ajax({
type: "POST",
url: 'mark_present.php',
data: { id : Pid, year : Pyear, month : Pmonth, day : Pday, date : Pdate },
dataType: "JSON",
success: function(data){
$("#message").html(data);
window.location.href = 'mark_attendance.php';
//window.location.reload();
},
error: function() {
alert("Failure");
}
});
}
mark_present.php:
<?php
include "db.php";
$student_id = $_POST['id'];
$year = $_POST['year'];
$month = $_POST['month'];
$day = $_POST['day'];
$date = $_POST['date'];
$sql = "INSERT INTO `student_attendance` SET student_id = '$student_id', year = '$year', month = '$month', day = '$day', date = '$date', status = '1' ";
$result = mysql_query($sql);
if($result){
return json_encode(array("message"=>true));
//echo "success";
}else{
return json_encode(array("message"=>false));
//echo "error";
}
?>
答案 0 :(得分:-1)
4.0
3.9924071330572093
3.982224060033384
3.9612544376696253
3.8080585081381275
0.03457371559793447
0.013026386180392412
0.006090856009723169
0.0018388671161891966
7.99632901621898
7.987892035846782
7.974282237149798
7.93316335979413
4.106158894193932
4.019755500146331
4.008967674404233
4.003810901304664
错误在您的插入查询上。
答案 1 :(得分:-1)
var Pyear = "<?php echo $selected_year; ?>";
var Pmonth = "<?php echo $selected_month; ?>";
var Pday = "<?php echo $selected_day; ?>";
var Pdate = "<?php echo $selected_date; ?>";
您需要使用"
将php变量设为javascript检查this链接
将您的PHP代码更改为
<?php
include "db.php";
$student_id = $_POST['id'];
$year = $_POST['year'];
$month = $_POST['month'];
$day = $_POST['day'];
$date = $_POST['date'];
$sql = "INSERT INTO `student_attendance` SET student_id = '$student_id', year = '$year', month = '$month', day = '$day', date = '$date', status = '1' ";
$result = mysql_query($sql);
if(!$result){
return json_encode(array("message"=>"There is some error".mysql_error());
} else {
return json_encode(array("message"=>"Record inserted successfully"));
}
?>
将您的成功功能更改为
.success : function (data){
console.log(data);
}
.error : function(data){
console.log(data);
}
您将在控制台或成功消息中收到错误