Php 如何使用AJAX发布和更新jQuery序列化
请注意，我已经通过下面的StackOverflow问题，这正是我需要的，但不幸的是，它没有张贴 我的代码- Test.phpPhp 如何使用AJAX发布和更新jQuery序列化,php,jquery,ajax,post,jquery-ui-sortable,Php,Jquery,Ajax,Post,Jquery Ui Sortable,请注意，我已经通过下面的StackOverflow问题，这正是我需要的，但不幸的是，它没有张贴 我的代码- Test.php <script src="https://code.jquery.com/jquery-3.5.1.min.js"></script> <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script> &
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$( function() {
$( "#sortable" ).sortable();
$( "#sortable" ).disableSelection();
} );
</script>
<ul id="sortable">
<li id="item-1">Item 1</li>
<li id="item-2">Item 2</li>
</ul>
Span 1: <span id="span"></span>
Span2: <span id="span2"></span>
<script>
$(document).ready(function () {
$('ul').sortable({
axis: 'y',
stop: function (event, ui) {
var data = $(this).sortable('serialize');
$('#span2').text(data);
$.ajax({
data: data,
type: 'POST',
url: 'test2.php',
success: function(data){
$("#span").text(data);
}
});
}
});
});
</script>
<?php
include('../db.php');
$date = $_POST["data"];
$conn = new mysqli ($servername, $dbusername, $dbpassword, $dbname);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "UPDATE table SET something = '$something'
WHERE id = '$id'";
if(mysqli_query($conn, $sql)){
echo $date;
}
$conn->close();
?>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$( function() {
$( "#sortable" ).sortable();
$( "#sortable" ).disableSelection();
} );
</script>
<ul id="sortable">
<?php
$q = ' SELECT * FROM temp';
$result = mysqli_query($conn, $q);
if ($result->num_rows > 0) {
while( $items = $result->fetch_assoc() ){
?>
<li id='sort_<?php echo $items['id'] ?>'>
<ul style="display:inline-block;"><?php echo $items['name'] ?></ul>
<ul style="display:inline-block;"><?php echo $items['name'] ?></ul>
</li>
<?php
}
}
?>
</ul>
<script>
$(document).ready(function () {
$('#sortable').sortable({
opacity: 0.325,
tolerance: 'pointer',
cursor: 'move',
update: function(event, ui) {
var post = $(this).sortable('serialize');
$.ajax({
type: 'POST',
url: 'test2.php',
data: post,
dataType: 'json',
cache: false,
success: function(output) {
console.log('success -> ' + output);
},
error: function(output) {
console.log('fail -> ' + output);
}
});
}
});
});
$('#sortable').disableSelection();
</script>
<?php
$isNum = false;
foreach( $_POST['sort'] as $key => $value ) {
if ( ctype_digit($value) ) {
$isNum = true;
} else {
$isNum = false;
}
}
if( isset($_POST) && $isNum == true ){
$orderArr = $_POST['sort'];
$order = 0;
if ($stmt = $conn->prepare(" UPDATE temp SET o_id = ? WHERE id=? ")) {
foreach ( $orderArr as $item) {
$stmt->bind_param("ii", $order, $item);
$stmt->execute();
$order++;
}
$stmt->close();
}
echo json_encode( $orderArr );
$conn->close();
}
?>
$（函数（）{
$（“#可排序”）.sortable（）；
$（“#可排序”）.disableSelection（）；
} );
第1项
第2项
跨度1：
Span2:
$（文档）.ready（函数（）{
$（'ul'）。可排序({
轴：‘y’，
停止：功能（事件、用户界面）{
var data=$（this.sortable（'serialize'）；
$（'#span2'）。文本（数据）；
$.ajax({
数据：数据，
键入：“POST”，
url:'test2.php'，
成功：函数（数据）{
$（“#span”）。文本（数据）；
}
});
}
});
});
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$( function() {
$( "#sortable" ).sortable();
$( "#sortable" ).disableSelection();
} );
</script>
<ul id="sortable">
<li id="item-1">Item 1</li>
<li id="item-2">Item 2</li>
</ul>
Span 1: <span id="span"></span>
Span2: <span id="span2"></span>
<script>
$(document).ready(function () {
$('ul').sortable({
axis: 'y',
stop: function (event, ui) {
var data = $(this).sortable('serialize');
$('#span2').text(data);
$.ajax({
data: data,
type: 'POST',
url: 'test2.php',
success: function(data){
$("#span").text(data);
}
});
}
});
});
</script>
<?php
include('../db.php');
$date = $_POST["data"];
$conn = new mysqli ($servername, $dbusername, $dbpassword, $dbname);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "UPDATE table SET something = '$something'
WHERE id = '$id'";
if(mysqli_query($conn, $sql)){
echo $date;
}
$conn->close();
?>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$( function() {
$( "#sortable" ).sortable();
$( "#sortable" ).disableSelection();
} );
</script>
<ul id="sortable">
<?php
$q = ' SELECT * FROM temp';
$result = mysqli_query($conn, $q);
if ($result->num_rows > 0) {
while( $items = $result->fetch_assoc() ){
?>
<li id='sort_<?php echo $items['id'] ?>'>
<ul style="display:inline-block;"><?php echo $items['name'] ?></ul>
<ul style="display:inline-block;"><?php echo $items['name'] ?></ul>
</li>
<?php
}
}
?>
</ul>
<script>
$(document).ready(function () {
$('#sortable').sortable({
opacity: 0.325,
tolerance: 'pointer',
cursor: 'move',
update: function(event, ui) {
var post = $(this).sortable('serialize');
$.ajax({
type: 'POST',
url: 'test2.php',
data: post,
dataType: 'json',
cache: false,
success: function(output) {
console.log('success -> ' + output);
},
error: function(output) {
console.log('fail -> ' + output);
}
});
}
});
});
$('#sortable').disableSelection();
</script>
<?php
$isNum = false;
foreach( $_POST['sort'] as $key => $value ) {
if ( ctype_digit($value) ) {
$isNum = true;
} else {
$isNum = false;
}
}
if( isset($_POST) && $isNum == true ){
$orderArr = $_POST['sort'];
$order = 0;
if ($stmt = $conn->prepare(" UPDATE temp SET o_id = ? WHERE id=? ")) {
foreach ( $orderArr as $item) {
$stmt->bind_param("ii", $order, $item);
$stmt->execute();
$order++;
}
$stmt->close();
}
echo json_encode( $orderArr );
$conn->close();
}
?>
对于遇到相同问题的人，以下是解决方案：
Test.php
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$( function() {
$( "#sortable" ).sortable();
$( "#sortable" ).disableSelection();
} );
</script>
<ul id="sortable">
<li id="item-1">Item 1</li>
<li id="item-2">Item 2</li>
</ul>
Span 1: <span id="span"></span>
Span2: <span id="span2"></span>
<script>
$(document).ready(function () {
$('ul').sortable({
axis: 'y',
stop: function (event, ui) {
var data = $(this).sortable('serialize');
$('#span2').text(data);
$.ajax({
data: data,
type: 'POST',
url: 'test2.php',
success: function(data){
$("#span").text(data);
}
});
}
});
});
</script>
<?php
include('../db.php');
$date = $_POST["data"];
$conn = new mysqli ($servername, $dbusername, $dbpassword, $dbname);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "UPDATE table SET something = '$something'
WHERE id = '$id'";
if(mysqli_query($conn, $sql)){
echo $date;
}
$conn->close();
?>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$( function() {
$( "#sortable" ).sortable();
$( "#sortable" ).disableSelection();
} );
</script>
<ul id="sortable">
<?php
$q = ' SELECT * FROM temp';
$result = mysqli_query($conn, $q);
if ($result->num_rows > 0) {
while( $items = $result->fetch_assoc() ){
?>
<li id='sort_<?php echo $items['id'] ?>'>
<ul style="display:inline-block;"><?php echo $items['name'] ?></ul>
<ul style="display:inline-block;"><?php echo $items['name'] ?></ul>
</li>
<?php
}
}
?>
</ul>
<script>
$(document).ready(function () {
$('#sortable').sortable({
opacity: 0.325,
tolerance: 'pointer',
cursor: 'move',
update: function(event, ui) {
var post = $(this).sortable('serialize');
$.ajax({
type: 'POST',
url: 'test2.php',
data: post,
dataType: 'json',
cache: false,
success: function(output) {
console.log('success -> ' + output);
},
error: function(output) {
console.log('fail -> ' + output);
}
});
}
});
});
$('#sortable').disableSelection();
</script>
<?php
$isNum = false;
foreach( $_POST['sort'] as $key => $value ) {
if ( ctype_digit($value) ) {
$isNum = true;
} else {
$isNum = false;
}
}
if( isset($_POST) && $isNum == true ){
$orderArr = $_POST['sort'];
$order = 0;
if ($stmt = $conn->prepare(" UPDATE temp SET o_id = ? WHERE id=? ")) {
foreach ( $orderArr as $item) {
$stmt->bind_param("ii", $order, $item);
$stmt->execute();
$order++;
}
$stmt->close();
}
echo json_encode( $orderArr );
$conn->close();
}
?>
$（函数（）{
$（“#可排序”）.sortable（）；
$（“#可排序”）.disableSelection（）；
} );
$（文档）.ready（函数（）{
$（“#可排序”）。可排序({
不透明度：0.325，
公差：“指针”，
光标：“移动”，
更新：功能（事件、用户界面）{
var post=$（this）.sortable（'serialize'）；
$.ajax({
键入：“POST”，
url:'test2.php'，
资料来源：波斯特，
数据类型：“json”，
cache:false，
成功：功能（输出）{
console.log（'success->'+输出）；
},
错误：函数（输出）{
console.log（'fail->'+输出）；
}
});
}
});
});
$（“#可排序”）.disableSelection（）；
Test2.php
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$( function() {
$( "#sortable" ).sortable();
$( "#sortable" ).disableSelection();
} );
</script>
<ul id="sortable">
<li id="item-1">Item 1</li>
<li id="item-2">Item 2</li>
</ul>
Span 1: <span id="span"></span>
Span2: <span id="span2"></span>
<script>
$(document).ready(function () {
$('ul').sortable({
axis: 'y',
stop: function (event, ui) {
var data = $(this).sortable('serialize');
$('#span2').text(data);
$.ajax({
data: data,
type: 'POST',
url: 'test2.php',
success: function(data){
$("#span").text(data);
}
});
}
});
});
</script>
<?php
include('../db.php');
$date = $_POST["data"];
$conn = new mysqli ($servername, $dbusername, $dbpassword, $dbname);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "UPDATE table SET something = '$something'
WHERE id = '$id'";
if(mysqli_query($conn, $sql)){
echo $date;
}
$conn->close();
?>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$( function() {
$( "#sortable" ).sortable();
$( "#sortable" ).disableSelection();
} );
</script>
<ul id="sortable">
<?php
$q = ' SELECT * FROM temp';
$result = mysqli_query($conn, $q);
if ($result->num_rows > 0) {
while( $items = $result->fetch_assoc() ){
?>
<li id='sort_<?php echo $items['id'] ?>'>
<ul style="display:inline-block;"><?php echo $items['name'] ?></ul>
<ul style="display:inline-block;"><?php echo $items['name'] ?></ul>
</li>
<?php
}
}
?>
</ul>
<script>
$(document).ready(function () {
$('#sortable').sortable({
opacity: 0.325,
tolerance: 'pointer',
cursor: 'move',
update: function(event, ui) {
var post = $(this).sortable('serialize');
$.ajax({
type: 'POST',
url: 'test2.php',
data: post,
dataType: 'json',
cache: false,
success: function(output) {
console.log('success -> ' + output);
},
error: function(output) {
console.log('fail -> ' + output);
}
});
}
});
});
$('#sortable').disableSelection();
</script>
<?php
$isNum = false;
foreach( $_POST['sort'] as $key => $value ) {
if ( ctype_digit($value) ) {
$isNum = true;
} else {
$isNum = false;
}
}
if( isset($_POST) && $isNum == true ){
$orderArr = $_POST['sort'];
$order = 0;
if ($stmt = $conn->prepare(" UPDATE temp SET o_id = ? WHERE id=? ")) {
foreach ( $orderArr as $item) {
$stmt->bind_param("ii", $order, $item);
$stmt->execute();
$order++;
}
$stmt->close();
}
echo json_encode( $orderArr );
$conn->close();
}
?>
希望它能帮助有需要的人。首先用try-and-catch包装您的代码，这样会显示错误，还可以在ajax中添加错误函数，这将在ajax中捕获错误。其次，让ajax调用排序停止函数是一个糟糕的想法：您对参数化的预处理语句非常开放，应该使用参数化的预处理语句，而不是手动构建查询。它们由或提供。永远不要相信任何形式的输入！即使您的查询仅由受信任的用户执行。