Question

我编写了这段代码，用于将表单中的数据添加到数据库中。那部分有效。

我尝试在成功添加数据后将页面重定向到completed.php。现在它只将数据添加到我的数据库表中，仅此而已。

这是我的代码：

<html>
<head>
<title>insert data in database using PDO(php data object)</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>

<div id="main">
<h1>Insert data into database using PDO</h1>
<div id="login">
<h2>Student's Form</h2>
<hr/>
    <form action="" method="post">
        <label>Student Name :</label>
        <input type="text" name="username" id="name" required="required" placeholder="Please Enter Name"/><br /><br />
        <label>Student Email :</label>
        <input type="email" name="email" id="email" required="required" placeholder="john123@gmail.com"/><br/><br />
        <input type="submit" value=" Submit " name="submit"/><br />
    </form>
</div>
</div>

<?php
if(isset($_POST["submit"])){

$hostname='localhost';
$username='adendud85_root';
$password='ayebruh';

try {
    $dbh = new PDO("mysql:host=$hostname;dbname=adendud85_aye",$username,$password);

    $dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); // <== add this line

    $sql = "INSERT INTO aye (username, email)
    VALUES ('".$_POST["username"]."','".$_POST["email"]."')";

    if ($dbh->query($sql)) {
        //echo "Success";
        header("Location: completed.php?username=".$_POST["username"]."");
    }
    else{
        echo "error";
    }

    $dbh = null;

}


catch(PDOException $e)
    {
        echo "error";

    }

}


?>
</body>
</html>

任何人都知道该做什么或做错了什么？

Answer 1

这样，你的所有echo语句应该在标题之后。

    <?php
if(isset($_POST["submit"])){

$hostname='localhost';
$username='adendud85_root';
$password='ayebruh';

try {
    $dbh = new PDO("mysql:host=$hostname;dbname=adendud85_aye",$username,$password);

    $dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); // <== add this line

    $sql = "INSERT INTO aye (username, email)
    VALUES ('".$_POST["username"]."','".$_POST["email"]."')";

    if ($dbh->query($sql)) 
    {
        header("Location: completed.php?username=".$_POST["username"]);
        //echo "Success";
    }
    else{
        echo "error";
    }

    $dbh = null;

}


catch(PDOException $e)
    {
        echo "error";

    }

}


?>

<html>
<head>
<title>insert data in database using PDO(php data object)</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>

<div id="main">
<h1>Insert data into database using PDO</h1>
<div id="login">
<h2>Student's Form</h2>
<hr/>
    <form action="" method="post">
        <label>Student Name :</label>
        <input type="text" name="username" id="name" required="required" placeholder="Please Enter Name"/><br /><br />
        <label>Student Email :</label>
        <input type="email" name="email" id="email" required="required" placeholder="john123@gmail.com"/><br/><br />
        <input type="submit" value=" Submit " name="submit"/><br />
    </form>
</div>
</div>


</body>
</html>

另外，请使用prepared语句。

PHP：数据添加到数据库后页面没有重定向

1 个答案: