[英]How to store the value of a text box in a database?
What I want to achieve: In a HTML window I click a button, then a popup window opens containing a text box and a submit button.我想要实现的目标:在 HTML 窗口中,我单击一个按钮,然后会打开一个包含文本框和提交按钮的弹出窗口。 There I enter a text into the text box, and after I click the submit button the text should be stored using SQl in a database.在那里我在文本框中输入一个文本,在我单击提交按钮后,文本应该使用 SQl 存储在数据库中。
I have code (see below)to get a text box value, and call another script to store the value in a database.我有代码(见下文)来获取文本框值,并调用另一个脚本将值存储在数据库中。
My AJAX code我的 AJAX 代码
$(document).ready(function() {
$("#sub").click(function() {
$.ajax({
type: "POST",
url: "jqueryphp.php",
data: {
val: $("#val").val()
},
success: function(result) {
$("div").html(result);
}
});
});
});
HTML form code HTML 表单代码
<input type="text" name="val[text]" id="val"/><br>
<input type="button" name="sub" value="submit" id="sub"/>
How can I put these pieces together?我怎样才能把这些碎片放在一起?
You can use a HTML form like this:您可以使用这样的 HTML 表单:
<html>
<head>
<script type="text/javascript"
src="http://code.jquery.com/jquery-1.10.2.js"> </script>
<script type="text/javascript"
src="addEntryFormAjax.js"> </script>
</head>
<body>
<form id="form">
<input type="text" id="blogText" name="blogText" size="40" />
<input type="submit" id="submit" value="submit"/>
</form>
<div id="result">
None
</div>
</body>
The HTML form uses JavaScript to attach a submit handler ( addEntryFormAjax.js
): HTML 表单使用 JavaScript 附加提交处理程序 ( addEntryFormAjax.js
):
$(document).ready(function() {
$("#form").submit(function() {
doAjax();
// Prevent normal form submit
return false;
});
});
function doAjax() {
$("#result").html("<span>Calling ...</span>");
$.ajax({
type: "POST",
url: "addEntryAjaxPdo.php",
dataType: "html",
data: {
blogText: $("#blogText").val()
},
success: function(result) {
$("#result").html(result);
}
});
}
If the submit button is pressed, the submit handler uses an AJAX call to the PHP script addEntryAjaxPdo.php
which inserts data into the database:如果提交按钮被按下,提交处理程序会使用 AJAX 调用 PHP 脚本addEntryAjaxPdo.php
,该脚本将数据插入到数据库中:
<div>
<?php
// Sleep 3s, simulate a long running request
sleep(3);
$host = "localhost";
$db = "sandbox";
$user = "dev";
$pass = "dev";
$conn = new PDO("mysql:host=$host;dbname=$db", $user, $pass);
$stmt =
$conn->prepare(
"insert into blog (blogText, blogTimestamp) values (:blogText, now())");
$stmt->bindParam(':blogText', $_REQUEST['blogText']);
$stmt->execute();
$sql = "select last_insert_id()";
$query = $conn->query($sql);
$row = $query->fetch(PDO::FETCH_ASSOC);
echo "Inserted <em>" . $_REQUEST['blogText'] . "</em> into blog, id is "
. $row['last_insert_id()'];
?>
</div>
The state/result of the AJAX call is shown in the HTML page in the div
element. AJAX 调用的状态/结果显示在 HTML 页面的div
元素中。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.