Question

为什么我的“删除”按钮不起作用？行（36，134）

这里是代码：

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "users";



$con = mysqli_connect("localhost","root","");
if (!$con){
    die("can not connect:" . mysql_error());
}
$db_select = mysqli_select_db($con, "users");
if (!$db_select) {
    die("Database selection failed: " . mysqli_error($con));
}

//  IF ID WIll post
if(isset($_POST['ID'])){
$query = "UPDATE `employees`
            SET `Name` = '".$_POST['name']."',
             `Last Name` = '".$_POST['lastname']."',
             `Birth Date` = '".$_POST['birth']."',
             `Position` = '".$_POST['position']."',
             `Job Applied` = '".$_POST['applied']."'
            WHERE 
                `ID` = '".$_POST['ID']."'
            ";
$con->query($query);   
header("Location: http://localhost/barami.php");
exit;         
}



if(isset($_GET['removeID'])){ 

$query = "DELETE
            FROM
                `employees`
            WHERE
                (`ID` = '".$_POST['removeID']."')";
$con->query($query);   
header("Location: http://localhost/barami.php");
exit; 
}
if(isset($_GET['ID'])){ 
$sql = "SELECT * FROM `Employees` WHERE ID='".$_GET['ID']."'";
$CurrentInfo = $con->query($sql);
if ($CurrentInfo->num_rows > 0) {
    $info = mysqli_fetch_assoc($CurrentInfo);
        ?>
    <form action="http://localhost/barami.php" method="post">
        <!-- POST-in ID -->
        <input type="hidden" name="ID" value="<?php echo $info["ID"];?>"> 
        <!-- POST-in ID -->

        <input type="text" name="name" placeholder="Name" value="<?php echo $info["Name"];?>">
        <input type="text" name="lastname" placeholder="Last Name" value="<?php echo $info["Last Name"];?>">
        <input type="text" name="birth" placeholder="Birth Date" value="<?php echo $info["Birth Date"];?>">
        <input type="text" name="position" placeholder="Position" value="<?php echo $info["Position"];?>">
        <input type="text" name="applied" placeholder="Job Applied" value="<?php echo $info["Job Applied"];?>">
        <input type="submit" value="+">
    </form>
    <?php 

    }
}else{ ?> 
<form action="http://localhost/barami.php" method="post">
    <input type="text" name="name" placeholder="Name" >
    <input type="text" name="lastname" placeholder="Last Name" >
    <input type="date" name="birth" placeholder="Birth Date" >
    <input type="text" name="position" placeholder="Position" >
    <input type="text" name="applied" placeholder="Job Applied" >
    <input type="submit" value="+">
</form>
<?php
}





if(isset($_POST['name'], $_POST['lastname'], $_POST['birth'], $_POST['position'], $_POST['applied'])){
    $name = htmlentities($_POST['name'], ENT_QUOTES, 'UTF-8');
    $lastname = $_POST['lastname'];
    $birth = $_POST['birth'];
    $position = $_POST['position'];
    $applied = $_POST['applied'];

if(!(strlen($name) > 0)){
    die('enter $name');

if(!(strlen($lastname) > 0)){
    die('enter $lastname');
}
if(!(strlen($position) > 0)){
    die('enter $position');
}
if(!(strlen($applied) > 0)){
    die('enter $applied');
}}

$sql = "INSERT INTO `Employees` (`Name`, `Last Name`, `Birth Date`, `Position`, `Job Applied`) VALUES ('".$name."', '".$lastname."', '".$birth."', '".$position."', '".$applied."')";


mysqli_query($con, $sql);

header("Location: http://localhost/barami.php");
die();
}

$sql = "SELECT * FROM `Employees`";
$result = $con->query($sql);
 echo "<table>
  <tr>
    <th>First Name</th>
    <th>Last Name</th>
    <th>Birth Date</th>
    <th>Position</th>
    <th>Job Applied</th>
  </tr>";
if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "  

                <tr>
                    <td>" . $row["Name"]. "</td>
                    <td>" . $row["Last Name"]. "</td>
                    <td>" . $row["Birth Date"]. "</td>
                    <td>" . $row["Position"]. "</td>
                    <td>" . $row["Job Applied"]. "</td>
                    <td><a href='http://localhost/barami.php?ID=" . $row["ID"]. "'>EDIT</a></td> 
                    <td><a href='http://localhost/barami.php?removeID=" . $row["ID"]. "'>DELETE</a></td> 
                </tr>
";

            } echo "</table>";
} else {
    echo "0 results";
}
?> 

<style>
table {
    width: 50%;
}

td, th {
    border: 1px solid grey;
    text-align: left;
    padding: 8px;
    border-radius: 8px;
}

</style>

Answer 1

如果存在带有removeID isset($_GET['removeID'])的GET请求，则您正在输入条件，但是，您正在尝试读取POST变量( ID = '".$_POST['removeID']."')";

您需要将其更改为$_GET['removeID']

我从SQL复制查询，但仍然无法正常工作

1 个答案: