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Javascript 使用jquery单击按钮时，如何删除特定行？

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Javascript 使用jquery单击按钮时，如何删除特定行？,javascript,php,jquery,mysqli,Javascript,Php,Jquery,Mysqli,我有一个玩家数据表，每行旁边都有一个删除按钮。 单击按钮时，应该立即使用jQuery删除该特定行。到目前为止，我已经包括了我的代码。当按动按钮时，我真的被卡住了。我应该使用头函数吗 index.php <!DOCTYPE html> <html> <head> <link rel="stylesheet" type="text/css" href="css/style.css"></link> &

我有一个玩家数据表，每行旁边都有一个删除按钮。 单击按钮时，应该立即使用jQuery删除该特定行。到目前为止，我已经包括了我的代码。当按动按钮时，我真的被卡住了。我应该使用头函数吗

index.php

<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" type="text/css" href="css/style.css"></link>
        <script src="js/jquery-1.11.3.min.js"></script>
        <script src="js/script.js"></script>
    </head>
<body>
    <!-- Create a table-->
    <table style width="800" border="1" cellpadding="1" cellspacing="1"> 
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <tr>
    <th>Player ID</th>
    <th>Player Name</th>
    <th>Player Position</th>
    <th>Delete</th>
    </tr>

    <?php
        require "php/conn.php";
        //Select query
        $res = $db -> query ("SELECT * FROM player");
        //Set pointer to 1
        $res -> data_seek(0);
        //Display data using while loop
        while ($row = $res -> fetch_assoc()) {
            // Write html code in php using this method
            echo "<div class = 'row'>";
            echo "<tr>";
            echo "<td>".$row['id']."</td>";
            echo "<td>".$row['surname']."</td>";
            echo "<td>".$row['position']."</td>";
            echo "<td><button id = 'dlt_btn' type='button'>Delete</button></td>";
            echo "</tr>";
            echo "</div>";


        }



    ?>

</body>

?

<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" type="text/css" href="css/style.css"></link>
        <script src="js/jquery-1.11.3.min.js"></script>
        <script src="js/script.js"></script>
    </head>
<body>
    <!-- Create a table-->
    <table style width="800" border="1" cellpadding="1" cellspacing="1"> 
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <tr>
    <th>Player ID</th>
    <th>Player Name</th>
    <th>Player Position</th>
    <th>Delete</th>
    </tr>

    <?php
        require "php/conn.php";
        //Select query
        $res = $db -> query ("SELECT * FROM player");
        //Set pointer to 1
        $res -> data_seek(0);
        //Display data using while loop
        while ($row = $res -> fetch_assoc()) {
            // Write html code in php using this method
            echo "<div class = 'row'>";
            echo "<tr>";
            echo "<td>".$row['id']."</td>";
            $player_id = $row['id'];
            echo "<td>".$row['surname']."</td>";
            echo "<td>".$row['position']."</td>";
            echo "<td><button id = 'dlt_btn' value = ". $row['id'] . " type='button'>Delete</button></td>";
            echo "</tr>";
            echo "</div>";


        }




    ?>

</body>

<?php
require "php/conn.php";
$player_id = $_POST['id'];

$stmt = $db -> prepare ("DELETE FROM player WHERE id = $player_id");
$stmt -> execute();

?>
delete.php

<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" type="text/css" href="css/style.css"></link>
        <script src="js/jquery-1.11.3.min.js"></script>
        <script src="js/script.js"></script>
    </head>
<body>
    <!-- Create a table-->
    <table style width="800" border="1" cellpadding="1" cellspacing="1"> 
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <tr>
    <th>Player ID</th>
    <th>Player Name</th>
    <th>Player Position</th>
    <th>Delete</th>
    </tr>

    <?php
        require "php/conn.php";
        //Select query
        $res = $db -> query ("SELECT * FROM player");
        //Set pointer to 1
        $res -> data_seek(0);
        //Display data using while loop
        while ($row = $res -> fetch_assoc()) {
            // Write html code in php using this method
            echo "<div class = 'row'>";
            echo "<tr>";
            echo "<td>".$row['id']."</td>";
            echo "<td>".$row['surname']."</td>";
            echo "<td>".$row['position']."</td>";
            echo "<td><button id = 'dlt_btn' type='button'>Delete</button></td>";
            echo "</tr>";
            echo "</div>";


        }



    ?>

</body>

?

<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" type="text/css" href="css/style.css"></link>
        <script src="js/jquery-1.11.3.min.js"></script>
        <script src="js/script.js"></script>
    </head>
<body>
    <!-- Create a table-->
    <table style width="800" border="1" cellpadding="1" cellspacing="1"> 
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <tr>
    <th>Player ID</th>
    <th>Player Name</th>
    <th>Player Position</th>
    <th>Delete</th>
    </tr>

    <?php
        require "php/conn.php";
        //Select query
        $res = $db -> query ("SELECT * FROM player");
        //Set pointer to 1
        $res -> data_seek(0);
        //Display data using while loop
        while ($row = $res -> fetch_assoc()) {
            // Write html code in php using this method
            echo "<div class = 'row'>";
            echo "<tr>";
            echo "<td>".$row['id']."</td>";
            $player_id = $row['id'];
            echo "<td>".$row['surname']."</td>";
            echo "<td>".$row['position']."</td>";
            echo "<td><button id = 'dlt_btn' value = ". $row['id'] . " type='button'>Delete</button></td>";
            echo "</tr>";
            echo "</div>";


        }




    ?>

</body>

<?php
require "php/conn.php";
$player_id = $_POST['id'];

$stmt = $db -> prepare ("DELETE FROM player WHERE id = $player_id");
$stmt -> execute();

?>
在此上下文中，您应该使用类vs ID，但可以使用$（this）定位单击的元素，并通过.parent（）jquery方法遍历/删除。这纯粹是为了从DOM中删除行，您需要执行一个ajax请求来告诉服务器要从数据库中删除哪一行。在这种情况下，您应该将row ID属性添加到html中，并将其与AJAX请求一起发送

可以将行ID作为属性附加到按钮中，如

使用DOM操作：


$(document).ready(function(){
  $("#dlt_btn").click(function () {
     var deleteRow = $(this)
     deleteRow.parents('.row').fadeOut(200);
  });
})



如果您想从数据库中删除。当函数同时运行时，触发php中的另一行代码


<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" type="text/css" href="css/style.css"></link>
        <script src="js/jquery-1.11.3.min.js"></script>
        <script src="js/script.js"></script>
    </head>
<body>
    <!-- Create a table-->
    <table style width="800" border="1" cellpadding="1" cellspacing="1"> 
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <tr>
    <th>Player ID</th>
    <th>Player Name</th>
    <th>Player Position</th>
    <th>Delete</th>
    </tr>

    <?php
        require "php/conn.php";
        //Select query
        $res = $db -> query ("SELECT * FROM player");
        //Set pointer to 1
        $res -> data_seek(0);
        //Display data using while loop
        while ($row = $res -> fetch_assoc()) {
            // Write html code in php using this method
            echo "<div class = 'row'>";
            echo "<tr>";
            echo "<td>".$row['id']."</td>";
            echo "<td>".$row['surname']."</td>";
            echo "<td>".$row['position']."</td>";
            echo "<td><button id = 'dlt_btn' type='button'>Delete</button></td>";
            echo "</tr>";
            echo "</div>";


        }



    ?>

</body>



?



<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" type="text/css" href="css/style.css"></link>
        <script src="js/jquery-1.11.3.min.js"></script>
        <script src="js/script.js"></script>
    </head>
<body>
    <!-- Create a table-->
    <table style width="800" border="1" cellpadding="1" cellspacing="1"> 
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <tr>
    <th>Player ID</th>
    <th>Player Name</th>
    <th>Player Position</th>
    <th>Delete</th>
    </tr>

    <?php
        require "php/conn.php";
        //Select query
        $res = $db -> query ("SELECT * FROM player");
        //Set pointer to 1
        $res -> data_seek(0);
        //Display data using while loop
        while ($row = $res -> fetch_assoc()) {
            // Write html code in php using this method
            echo "<div class = 'row'>";
            echo "<tr>";
            echo "<td>".$row['id']."</td>";
            $player_id = $row['id'];
            echo "<td>".$row['surname']."</td>";
            echo "<td>".$row['position']."</td>";
            echo "<td><button id = 'dlt_btn' value = ". $row['id'] . " type='button'>Delete</button></td>";
            echo "</tr>";
            echo "</div>";


        }




    ?>

</body>



<?php
require "php/conn.php";
$player_id = $_POST['id'];

$stmt = $db -> prepare ("DELETE FROM player WHERE id = $player_id");
$stmt -> execute();

?>


delete.php


<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" type="text/css" href="css/style.css"></link>
        <script src="js/jquery-1.11.3.min.js"></script>
        <script src="js/script.js"></script>
    </head>
<body>
    <!-- Create a table-->
    <table style width="800" border="1" cellpadding="1" cellspacing="1"> 
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <tr>
    <th>Player ID</th>
    <th>Player Name</th>
    <th>Player Position</th>
    <th>Delete</th>
    </tr>

    <?php
        require "php/conn.php";
        //Select query
        $res = $db -> query ("SELECT * FROM player");
        //Set pointer to 1
        $res -> data_seek(0);
        //Display data using while loop
        while ($row = $res -> fetch_assoc()) {
            // Write html code in php using this method
            echo "<div class = 'row'>";
            echo "<tr>";
            echo "<td>".$row['id']."</td>";
            echo "<td>".$row['surname']."</td>";
            echo "<td>".$row['position']."</td>";
            echo "<td><button id = 'dlt_btn' type='button'>Delete</button></td>";
            echo "</tr>";
            echo "</div>";


        }



    ?>

</body>



?



<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" type="text/css" href="css/style.css"></link>
        <script src="js/jquery-1.11.3.min.js"></script>
        <script src="js/script.js"></script>
    </head>
<body>
    <!-- Create a table-->
    <table style width="800" border="1" cellpadding="1" cellspacing="1"> 
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <!-- Create headings. Every row is defined as with <tr> tag-->
    <tr>
    <th>Player ID</th>
    <th>Player Name</th>
    <th>Player Position</th>
    <th>Delete</th>
    </tr>

    <?php
        require "php/conn.php";
        //Select query
        $res = $db -> query ("SELECT * FROM player");
        //Set pointer to 1
        $res -> data_seek(0);
        //Display data using while loop
        while ($row = $res -> fetch_assoc()) {
            // Write html code in php using this method
            echo "<div class = 'row'>";
            echo "<tr>";
            echo "<td>".$row['id']."</td>";
            $player_id = $row['id'];
            echo "<td>".$row['surname']."</td>";
            echo "<td>".$row['position']."</td>";
            echo "<td><button id = 'dlt_btn' value = ". $row['id'] . " type='button'>Delete</button></td>";
            echo "</tr>";
            echo "</div>";


        }




    ?>

</body>



<?php
require "php/conn.php";
$player_id = $_POST['id'];

$stmt = $db -> prepare ("DELETE FROM player WHERE id = $player_id");
$stmt -> execute();

?>





您尝试过什么吗？有sql语句在运行吗？您知道如何进行ajax调用吗？您基本上需要一个ajax调用，该调用将该行的id发送到delete.php（加上身份验证，…）按钮不能多次具有相同的id。你可以在这里使用玩家的id
id='dlt_btn.'$row['id']。“
我想他想从数据库中删除它，而不仅仅是从dom中删除。虽然这可以从HTML中删除它，但OP正在寻找外部调用以从数据库中删除某些内容。是的。我需要从数据库中删除，因为wellOP没有指定从数据库中删除。只提到jQuery。Post更新显示了包括ajax（无服务器端逻辑）的示例，尽管问题中没有直接指定，但在他的代码中，他确实建议“激活”PHP文件。你的答案改变了，我投了赞成票。