Question

我使用WAMP作为我的php服务器，我使用PHP-AdminPage作为我的数据库（在MySql中使用），一切正常，我的数据库已连接。除了我要显示数据时，创建的行都是空的！甚至我都没有把它们留空。我不明白，我很困惑。

PHP代码：

<html>
<body>
<?php

$conn = new mysqli('localhost','root','');

//check connection
if ($conn-> connect_error) {
        die("Connection failed: ".$conn->connect_error);
}
echo "Database Connected successfully";

//choose db
mysqli_select_db($conn,"catcafe");

//insert query
$sql="INSERT INTO customer(FName,LName,Email,PhNum,Time) VALUES('$_POST[firstname]',
'$_POST[lastname]','$_POST[Email]','$_POST[Mobile]','$_Post[Time]')";

if($conn->query($sql) === true) {
    echo "New record created";
}
else{
    echo "Error, check values".$sql."<br>".$conn->error;
}


mysqli_close($conn);
?> 

</body>
</html>

//insert query
$sql="INSERT INTO customer(FName,LName,Email,PhNum,Time) VALUES('$_POST[firstname]',
'$_POST[lastname]','$_POST[Email]','$_POST[Mobile]','$_Post[Time]')";

MySQL一直告诉我错误在这里！但我不知道它是什么，这些列的名称与数据库中的名称完全相同。

我的表格/ HTML代码：

<form action="InsertReservation.php">
        <label for="fname">First Name  </label><br>
        <input type="text" id="fname" name="firstname" placeholder="Your name.." style="width:600px; font-size: 30px;">
        <br>
        <label for="lname">Last Name  </label><br>
        <input type="text" id="lname" name="lastname" placeholder="Your last name.."style="width:600px; font-size: 30px;">
        <br>
        <label for="Email">Email  </label><br>
        <input type="text" id="Email" name="Email" placeholder="Your Email is.."style="width:600px; font-size: 30px;">
        <br>
        <label for="Mobile">Mobile Number  </label><br>
        <input type="text" id="Mobile" name="Mobile" placeholder="Your Mobile Number is.." style="width:600px; font-size: 30px;">
        <br>
        <label for="Time">Time  </label><br>
        <input type="time" id="Time" name="Time" min="8:00"  required style="width:600px; font-size: 30px;">
        <br>
        <input type="submit" value="Submit" onclick="alert ('Thank you. Your Reservation Is Confirmed!')"> 
  <button type="reset" value="Reset" onclick="alert ('Reset is complete')"> Reset </button> <br>
      </form>

MySQL代码

SELECT * FROM `customer` ORDER BY `customer`.`FName` ASC

我希望它插入数据，但是它一直在插入空数据。

Answer 1

始终验证输入数据。
使用准备好的语句供用户输入

Time是mysql的保留字，因此请在其周围使用反引号。

$conn = new mysqli('localhost', 'root', '');

//check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
echo "Database Connected successfully";

//choose db
mysqli_select_db($conn, "catcafe");

//insert query
$sql = "INSERT INTO customer(FName,LName,Email,PhNum,`Time`) VALUES(?,?,?,?,?)";

$stmt = $conn->prepare($sql);
$stmt->bind_param("sssss", $_POST['firstname'], $_POST['lastname'], $_POST['Email'], $_POST['Mobile'], $_POST['Time']);

if ($stmt->execute()) {
    echo "New record created";
} else {
    echo "Error, check values " . $stmt->error;
}


mysqli_close($conn);
?>

Answer 2

你好，请在单个文件上使用此代码，效果很好。
谢谢

$conn = new mysqli('localhost', 'root', '');

    //check connection
    if ($conn->connect_error) {
        die("Connection failed: " . $conn->connect_error);
    }
    echo "Database Connected successfully";

    //choose db
    mysqli_select_db($conn, "catcafe");
    if($conn){
    //insert query

    if(isset($_POST['submit']) && $_POST['submit'] == 'Submit'){

     $sql = "INSERT INTO customer(FName,LName,Email,PhNum,Time) 
                VALUES('".$_POST['firstname']."','".$_POST['lastname']."','".$_POST['Email']."','".$_POST['Mobile']."','".$_POST['Time']."')";

        if($conn->query($sql) === true) {
            echo "New record created";
        }
        else{
            echo "Error, check values".$sql."<br>".$conn->error;
        }
    }

    mysqli_close($conn);
    }

    <form method="post">
            <label for="fname">First Name  </label><br>
            <input type="text" id="fname" name="firstname" placeholder="Your name.." style="width:600px; font-size: 30px;">
            <br>
            <label for="lname">Last Name  </label><br>
            <input type="text" id="lname" name="lastname" placeholder="Your last name.."style="width:600px; font-size: 30px;">
            <br>
            <label for="Email">Email  </label><br>
            <input type="text" id="Email" name="Email" placeholder="Your Email is.."style="width:600px; font-size: 30px;">
            <br>
            <label for="Mobile">Mobile Number  </label><br>
            <input type="text" id="Mobile" name="Mobile" placeholder="Your Mobile Number is.." style="width:600px; font-size: 30px;">
            <br>
            <label for="Time">Time  </label><br>
            <input type="time" id="Time" name="Time" min="8:00" style="width:600px; font-size: 30px;">
            <br>
            <input type="submit" name="submit" value="Submit" onclick="alert ('Thank you. Your Reservation Is Confirmed!')"> 
      <button type="reset" value="Reset" onclick="alert ('Reset is complete')"> Reset </button> <br>
          </form>

如何在WAMP中修复MySQL和PHP而不插入数据？

2 个答案: