doujiongqin0687 2016-09-11 12:39
浏览 80

如何使用Jquery ajax和php将数据插入mysql数据库?

I am trying to learn Ajax. I am inserting some data to mysql database from a Html Form by php. It works nicely. But my ajax part does not work. I get the success message but data dont go to my php file. My html and js code:

<!DOCTYPE html>
    <title>Insertion of data with Ajax</title>
    <script src="">    </script>
    <form id="myForm" method="POST" action="ajax-save.php">

    Title: <input type="text" name="title" id="title"><br /><br />
    Description: <textarea name="description" id="description" rows="20" cols="40"></textarea><br /><br />
    Url: <input type="text" name="url" id="url"><br /><br />

    <input type="submit" id="submit" name="submit" value="submit">




            url: 'ajax-save.php',
            async: true,
            cache: false,
            data: $('#myForm').serialize() ,
            type: 'POST',
            success: function(){
           return false;




My php codes are working properly. I have tested it without ajax. Here is my php code.

    $conn = mysql_connect('localhost', 'root', '');
    $db = mysql_select_db('hospital');

    if (isset($_POST['title'])) { $title = $_POST['title'];}
    if (isset($_POST['description'])) { $description = $_POST['description'];}
    if (isset($_POST['url'])) { $url = $_POST['url'];}

        if(mysql_query("insert into `wp_upload_video` (`id`, `title`, `description`, `url`) values (NULL, '$title', '$description', '$url')"))
            echo "Successfully Inserted";
            echo "Insertion Failed";

Please let me know where is my fault.

  • 写回答

1条回答 默认 最新

  • dongpu5600 2016-09-11 19:35

    When you submit via ajax on a click of the submit button.... that condition is always true.

    Checking if $_POST['submit'] is set in the PHP will always result in true because if it is not true the ajax never gets processed.

    So... remove the if submit condition in the PHP and handle error notification in the ajax call.

    Also, as pointed out by @NiettheDarkAbsol in comments, it's a good idea to add e.preventDefault() to the jquery as well to stop the submit button submitting the form as it normally would and allow the jquery to handle the submit (via ajax).

    本回答被题主选为最佳回答 , 对您是否有帮助呢?



  • ¥15 基于bert-base-chinese的中文文本处理
  • ¥15 高价求抖音抓包技术,抖音抓包无网络问题
  • ¥15 【matlab】已知功率谱密度反求时域信号
  • ¥15 mindspore项目_模型适配
  • ¥15 openstack使用cinder后,实例运行时分配的总空间不能大于ceph的总空间
  • ¥15 [pcl::PLYWriter::writeASCII] Error during opening (?鶂?)!
  • ¥15 得到XY两轴的数据如何绘制成圆,输入整形器
  • ¥29 PHP读取PDF文件添加多个数字签名
  • ¥25 联邦学习vgg修改最后一个全连接层报错(默认是1000个输出,我的改为11就报错,改为200就没问题)
  • ¥15 maple画图问题,为什么会是这样