Php 根据我单击的编号从数据库加载数据

您好，我有一个表格，如下图所示

。。。以何种形式从数据库表加载第一个数据

我想要的是，当我单击列表顶部的数字时，加载相应的数据

我的代码如下（不包括html表单代码）

$（文档）.ready（函数（）{
$（“#更新工作”）。单击（函数（）{
$（“#idW”）.css（“显示”、“无”）；
var r=parseInt（$（“#idW”）.val（），10）+1；
$（“#idW”）.val（r）；
});
});

您可以通过ajax请求来实现这一点。Jquery为我们提供了简单的应用程序界面

可能有无穷无尽的方法，但为了说明目的，这里是我将如何做到这一点


让每个锚元素都有一个代表性的属性，可以是类选择器：
。etc

或者您可以让jQuery根据元素的值来决定发布什么信息。。你的喜好


请参阅，用户单击的是哪个数字？
$（'a'）。在（'click'，function（）{var clicked=$（this）.attr（'change\u form\u to'））上
因此，这里的变量保存这个自定义属性值
$（this）.text（）
或类似的值，以获取文本文本文本jQuery

然后调用php脚本
$.ajax（{type:'POST'，url:'dbh.php'，data:{idWork:clicked}，success:function（res）{populate（res）}}）
，当调用success函数时，响应为您调用定制的populate函数



致geather：

$('a').on('click',function(){

   var clicked = $(this).attr('change_form_to');
   $.ajax({
      type:'POST',
      url:'dbh.php',
      data:{idWork:clicked},
      success: function(res){
         console.log(res);
         //populate(res); could look like this if your php script dies with just outputing json_encode on some assoc array 
         var j = JSON.parse(res);
         $('form input.name').value(j.name) ...etc
         }
    })

});

您的问题表明您希望从数据库中获取数据，但在sql语法中，您有更新逻辑

<?php
                $username = $_SESSION["username"];

                if(isset($_POST['idWork'])){

                    $id = $_POST['idWork'];
                    $job_title = mysql_real_escape_string($_POST["job_title"]);
                    $company = mysql_real_escape_string($_POST["company"]);
                    $website = mysql_real_escape_string($_POST["website"]);
                    $start_date = mysql_real_escape_string($_POST["start_date"]);
                    $end_date = mysql_real_escape_string($_POST["end_date"]);
                    $start_year = mysql_real_escape_string($_POST["start_year"]);
                    $end_year = mysql_real_escape_string($_POST["end_year"]);
                    $work_history = mysql_real_escape_string($_POST["work_history"]);
                    if($start_year > $end_year)
                    {
                        echo '<script>ErrorMessage()</script>';
                        $id=$id-1;
                        $good = false;
                    }
                    else
                    {
                        $good = true;
                    }
                    if($good == true){

                    $query="UPDATE work
                            SET job_title = '$job_title', company = '$company', website = '$website', start_date='$start_date', end_date='$end_date', start_year='$start_year', end_year='$end_year', work_history='$work_history'
                            WHERE id='$id' AND username='$username'";

                        mysql_query($query)or die(mysql_error());
                        if(mysql_affected_rows()>=0){
                            echo "<p>Record Updated<p>";
                            echo "<script type='text/javascript'>;
                                    window.location='addCV.php';
                                  </script>";
                        }else{
                            echo "<p>Error Updating Record<p>";
                            echo "<script type='text/javascript'>;
                                    window.location='addCV.php';
                                  </script>";
                        }
                    }
                }
                // add the below check 
                else if(isset($_GET['idWork'])){
                  // user clicked on one of the id links to get here
                  // set $id to the value of the GET parameter for key "idWork"
                  $id = $_GET['idWork'];
                }
                else{
                  // first time, initialize as you wish. Probably need to get the first id for this user, using another query
                  // I went ahead and added this for you...
                  if($query = mysql_query("SELECT job_title,company,website,start_date,end_date,start_year,end_year,work_history FROM work WHERE username='$username' order by id asc limit 1") or die(mysql_error())){
                      if(mysql_num_rows($query)>0){
                        while($row = mysql_fetch_array($query)) {
                             $id = $row['id'];
                        }
                      }
                      else{
                          echo '<script>ErrorMessage()</script>';
                      }
                  }
                }

                if($query = mysql_query("SELECT job_title,company,website,start_date,end_date,start_year,end_year,work_history FROM work WHERE id>'$id' AND username='$username' order by id asc limit 1") or die(mysql_error()))
                {
                    if(mysql_num_rows($query)>=1){
                        while($row = mysql_fetch_array($query)) {
                        $job_title = $row['job_title'];
                        $company = $row['company'];
                        $website = $row['website'];
                        $start_date = $row['start_date'];
                        $end_date = $row['end_date'];
                        $start_year = $row['start_year'];
                        $end_year = $row['end_year'];
                        $work_history = $row['work_history'];
                        }
                    }

                }
            ?>
            <script>
                $(document).ready(function(){
                    $("#updateWork").click(function(){
                        $("#idW").css("display","none");
                        var r = parseInt($("#idW").val(),10)+1;
                        $("#idW").val(r);
                    });

                    // listen for clicks on the id links
                    $('[data-row-id]').click(function(e){
                            e.preventDefault();
                            var fileName = 'thisFile.php?idWork='; //change "thisFile.php" to the name of this file in your project, the "?" starts the GET parameters, idWork= sets the key for the GET parameter  
                            var id = $(this).data('row-id'); // this gets the id that we stored in the link's data attribute
                            var url = fileName+id;  // then we add that id as the value for the "idWork" key
                            window.location= url; // esentially refresh this page with the id set as a GET parameter and make use of the logic we already have to load the info
                    });
                });
            </script>
            <p><input type="button" value="Work History" id="SlideMeWorkHistoryButton" style="color: #F87F25; background: black; font: bold 22px Tahoma; width: 16em;  height: 2em; border-radius:7px; padding:4px;"/></p>              
            <div id="SlideMeWorkHistoryForm">
                <?php
                $sql = "SELECT id FROM work WHERE username='$username' order by id asc limit 10;";

                $result = mysql_query($sql);
                if ($result != 0) {


                    $num_results = mysql_num_rows($result);
                    for ($i=0;$i<$num_results;$i++) {
                        $row = mysql_fetch_array($result);
                        $id = $row['id'];
                        echo '<a href="#" data-row-id="'.$id.'">' .$id. '</a>';
                    }

                }
                ?>

最后一个脚本是我们用于GETlol的脚本，我没有注意到粘贴的代码区域是可滚动的。这是答案，请检查！你能不能把你的代码整合到我的代码中，以便理解它是如何工作的？谢谢你的时间，请插一点。一旦你掌握了我提供的基本知识，你就可以把它们放在一起。你应该使用数据属性。您没有提到OP需要如何设置
dbh.php
来返回查询行的信息Hi niklakis，您的项目是否一定要使用
php
和
mySQL
？我之所以这么问，是因为如果您愿意使用parse.com的免费服务，只需使用jquery就可以非常轻松地创建所需的内容。查看我在1.5小时内制作的这个演示，它完全满足您的需要，并且只使用jquery来完成：（注意，我在编号的链接上使用了一个“下一步”按钮）@delighteddod我们做了类似的事情，但教授希望根据我们数据库中的数据数量显示随机的数字。他想显示特定表格中可能包含的所有数据的编号，然后当我点击编号2时，例如在文本字段中加载该特定编号的信息。这很容易添加，你必须使用php和MySQL吗？@bleeted0d是的，我们使用php和MySQL来实现这一点project@DelightedD0D你有什么建议吗？感谢您的时间，我收到了这个错误通知：未定义的索引：id在第472行的E:\xampp\htdocs\CVToolGismo\addCV.php中，这可能是它不起作用的原因。linr 472中的代码是$id=$row['id']。。。。。我还替换了var文件名='thisFile.php？idWork='；用这个。。。。var fileName='thisFile.php？idWork='。。。正如您在评论中提到的，while循环或for循环中的一个？同样，如果我单击一个数字，错误会消失，但它不会将数据加载到formI中。我尝试了您的代码，我检测到当我单击任何数字时，我浏览器上的url变为addCV.php？idWork=undefined，所以我可以理解它没有得到id值，因为如果我自己写这个数字，例如addCV.php？idWork=4，它会加载数据
<?php
                $username = $_SESSION["username"];

                if(isset($_POST['idWork'])){

                    $id = $_POST['idWork'];
                    $job_title = mysql_real_escape_string($_POST["job_title"]);
                    $company = mysql_real_escape_string($_POST["company"]);
                    $website = mysql_real_escape_string($_POST["website"]);
                    $start_date = mysql_real_escape_string($_POST["start_date"]);
                    $end_date = mysql_real_escape_string($_POST["end_date"]);
                    $start_year = mysql_real_escape_string($_POST["start_year"]);
                    $end_year = mysql_real_escape_string($_POST["end_year"]);
                    $work_history = mysql_real_escape_string($_POST["work_history"]);
                    if($start_year > $end_year)
                    {
                        echo '<script>ErrorMessage()</script>';
                        $id=$id-1;
                        $good = false;
                    }
                    else
                    {
                        $good = true;
                    }
                    if($good == true){

                    $query="UPDATE work
                            SET job_title = '$job_title', company = '$company', website = '$website', start_date='$start_date', end_date='$end_date', start_year='$start_year', end_year='$end_year', work_history='$work_history'
                            WHERE id='$id' AND username='$username'";

                        mysql_query($query)or die(mysql_error());
                        if(mysql_affected_rows()>=0){
                            echo "<p>Record Updated<p>";
                            echo "<script type='text/javascript'>;
                                    window.location='addCV.php';
                                  </script>";
                        }else{
                            echo "<p>Error Updating Record<p>";
                            echo "<script type='text/javascript'>;
                                    window.location='addCV.php';
                                  </script>";
                        }
                    }
                }
                // add the below check 
                else if(isset($_GET['idWork'])){
                  // user clicked on one of the id links to get here
                  // set $id to the value of the GET parameter for key "idWork"
                  $id = $_GET['idWork'];
                }
                else{
                  // first time, initialize as you wish. Probably need to get the first id for this user, using another query
                  // I went ahead and added this for you...
                  if($query = mysql_query("SELECT job_title,company,website,start_date,end_date,start_year,end_year,work_history FROM work WHERE username='$username' order by id asc limit 1") or die(mysql_error())){
                      if(mysql_num_rows($query)>0){
                        while($row = mysql_fetch_array($query)) {
                             $id = $row['id'];
                        }
                      }
                      else{
                          echo '<script>ErrorMessage()</script>';
                      }
                  }
                }

                if($query = mysql_query("SELECT job_title,company,website,start_date,end_date,start_year,end_year,work_history FROM work WHERE id>'$id' AND username='$username' order by id asc limit 1") or die(mysql_error()))
                {
                    if(mysql_num_rows($query)>=1){
                        while($row = mysql_fetch_array($query)) {
                        $job_title = $row['job_title'];
                        $company = $row['company'];
                        $website = $row['website'];
                        $start_date = $row['start_date'];
                        $end_date = $row['end_date'];
                        $start_year = $row['start_year'];
                        $end_year = $row['end_year'];
                        $work_history = $row['work_history'];
                        }
                    }

                }
            ?>
            <script>
                $(document).ready(function(){
                    $("#updateWork").click(function(){
                        $("#idW").css("display","none");
                        var r = parseInt($("#idW").val(),10)+1;
                        $("#idW").val(r);
                    });

                    // listen for clicks on the id links
                    $('[data-row-id]').click(function(e){
                            e.preventDefault();
                            var fileName = 'thisFile.php?idWork='; //change "thisFile.php" to the name of this file in your project, the "?" starts the GET parameters, idWork= sets the key for the GET parameter  
                            var id = $(this).data('row-id'); // this gets the id that we stored in the link's data attribute
                            var url = fileName+id;  // then we add that id as the value for the "idWork" key
                            window.location= url; // esentially refresh this page with the id set as a GET parameter and make use of the logic we already have to load the info
                    });
                });
            </script>
            <p><input type="button" value="Work History" id="SlideMeWorkHistoryButton" style="color: #F87F25; background: black; font: bold 22px Tahoma; width: 16em;  height: 2em; border-radius:7px; padding:4px;"/></p>              
            <div id="SlideMeWorkHistoryForm">
                <?php
                $sql = "SELECT id FROM work WHERE username='$username' order by id asc limit 10;";

                $result = mysql_query($sql);
                if ($result != 0) {


                    $num_results = mysql_num_rows($result);
                    for ($i=0;$i<$num_results;$i++) {
                        $row = mysql_fetch_array($result);
                        $id = $row['id'];
                        echo '<a href="#" data-row-id="'.$id.'">' .$id. '</a>';
                    }

                }
                ?>