提交表单时遇到麻烦，不确定为什么我的按钮不起作用。我正在尝试做的是允许用户编辑数据库上的记录。当我单击cms.php上的编辑链接时，将带我进入edit.php，它显示了单击的电影详细信息。当我更改详细信息并提交时，没有任何反应。另外，我没有被重定向回上一页。非常感谢您能得到的任何帮助，因为我已经坚持了将近一天，谢谢您：) edit.php，下面是处理电影剪辑的后端代码。
edit.php
<?php
include('../includes/conn.inc.php');
include('../includes/functions.php');
$movieID = $_GET['movieID'] ?? null;
$sMovieID = safeInt($movieID);
$sql ="SELECT * FROM sheffmovies WHERE movieID =:movieID";
$stmt = $pdo->prepare($sql);
$stmt->bindParam(':movieID', $sMovieID, PDO::PARAM_INT);
$stmt->execute();
$totalnoMovies = $stmt->rowCount();
$row = $stmt->fetchObject();
if($totalnoMovies === 0){
header('Location: notFoundCMS.php');
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<meta name="description" content = "Movies in Sheffield at Sheff Cinema">
<meta name= "keywords" content = "SheffCinema, movies, local movies in Sheffield, latest showings in Sheffield">
<meta name = "author" content = "SheffCinema">
<title>SheffCinema | Welcome</title>
<link rel="stylesheet" href="../css/stylesheet.css">
</head>
<body>
<h1> Edit Page <?php echo $row ->movieName; ?> </h1>
<div class="contact-form">
<form name ="form1" method="post" action="../action/editRecord.php">
<input name="movieID" type ="hidden" value ="<?php echo $row->movieID; ?>">
<label for="movieName">Movie Name</label>
<input type="text" name="movieName" id="movieName" value="<?php echo $row->movieName; ?>">
<label for="moviePrice">Price of Movie</label>
<input type="text" name="moviePrice" id="moviePrice" value="<?php echo $row->moviePrice; ?>">
<label for="movieCertificate">Age rating</label>
<input type="text" name="movieCertificate" id="movieCertificate" value="<?php echo $row->movieCertificate; ?>">
<label for="movieGenre">Genre</label>
<input type="text" name="movieGenre" id="movieGenre" value="<?php echo $row->movieGenre; ?>">
<label for="movieRating">Rating (Out of 5)</label>
<input type="text" name="movieRating" id="movieRating" value="<?php echo $row->movieRating; ?>">
<button type="submit" name="button1" class="button_1" form="form1" value="Submit">Submit</button>
</div>
</form>
editRecord.php
<?php
include('../includes/conn.inc.php');
include('../includes/functions.php');
$sMovieName = safeString($_POST['movieName']);
$sMoviePrice = safeFloat($_POST['moviePrice']);
$sMovieCertificate = safeInt($_POST['movieCertificate']);
$sMovieGenre = safeString($_POST['movieGenre']);
$sMovieRating = safeInt($_POST['movieRating']);
$sMovieID = safeInt($_POST['movieID']);
$sql = "UPDATE sheffmovies SET
movieName = :movieName,
moviePrice = :moviePrice,
movieCertificate = :movieCertificate,
movieGenre = :movieGenre,
movieRating = :movieRating,
WHERE movieID = :movieID";
$stmt = $pdo-> prepare ($sql);
$stmt->bindParam(':movieName', $sMovieName, PDO::PARAM_STR);
$stmt->bindParam(':moviePrice', $sMoviePrice, PDO::PARAM_STR);
$stmt->bindParam(':movieCertificate', $sMovieCertificate, PDO::PARAM_STR);
$stmt->bindParam(':movieGenre', $sMovieGenre, PDO::PARAM_STR);
$stmt->bindParam(':movieRating', $sMovieRating, PDO::PARAM_INT);
$stmt->bindParam(':movieID', $sMovieID, PDO::PARAM_INT);
header("Location:../cms/cms.php");
exit;
?>
绑定参数后，需要执行将其保存到DB。https://www.php.net/manual/en/pdostatement.execute.php
$sql = "UPDATE sheffmovies SET
movieName = :movieName,
moviePrice = :moviePrice,
movieCertificate = :movieCertificate,
movieGenre = :movieGenre,
movieRating = :movieRating
WHERE movieID = :movieID";
$stmt = $pdo-> prepare ($sql);
$stmt->bindParam(':movieName', $sMovieName, PDO::PARAM_STR);
$stmt->bindParam(':moviePrice', $sMoviePrice, PDO::PARAM_STR);
$stmt->bindParam(':movieCertificate', $sMovieCertificate, PDO::PARAM_STR);
$stmt->bindParam(':movieGenre', $sMovieGenre, PDO::PARAM_STR);
$stmt->bindParam(':movieRating', $sMovieRating, PDO::PARAM_INT);
$stmt->bindParam(':movieID', $sMovieID, PDO::PARAM_INT);
$stmt->execute(); // <- This needs to be added
此外，您的SQL中还有一个逗号结尾。已从此答案中删除。
对于您的HTML，使用按钮的输入界面提交。 （而且您的div标签未在正确的位置关闭）
<div class="contact-form">
<form name ="form1" method="post" action="../action/editRecord.php">
<input name="movieID" type ="hidden" value ="<?php echo $row->movieID; ?>">
<label for="movieName">Movie Name</label>
<input type="text" name="movieName" id="movieName" value="<?php echo $row->movieName; ?>">
<label for="moviePrice">Price of Movie</label>
<input type="text" name="moviePrice" id="moviePrice" value="<?php echo $row->moviePrice; ?>">
<label for="movieCertificate">Age rating</label>
<input type="text" name="movieCertificate" id="movieCertificate" value="<?php echo $row->movieCertificate; ?>">
<label for="movieGenre">Genre</label>
<input type="text" name="movieGenre" id="movieGenre" value="<?php echo $row->movieGenre; ?>">
<label for="movieRating">Rating (Out of 5)</label>
<input type="text" name="movieRating" id="movieRating" value="<?php echo $row->movieRating; ?>">
<input type="submit" class="button_1" value="Submit">
</form>
</div>