请寻求帮助。我是php的新手，我的课程需要我将表单数据保存到sql数据库。我有以下代码，它会创建我的错误消息＆＃34;出错了＆＃34;。我在网上学习，而且我的讲师在帮助方面毫无用处。谁能告诉我哪里出错了？
我的数据库在其他地方读取和写入确定..
<?php
$page_title = "Login Page";
session_start();
include('header.php');
require_once("validation_functions.php");
require_once('functions.php');
require_once('connection.php');
// Check if form was submitted
if (isset($_POST['submit'])) {
// Remove whitespace from beginning and end of values
$title = trim($_POST["Title"]);
$director = trim($_POST["Director"]);
$producer = trim($_POST["Producer"]);
$running_time = trim($_POST["Running"]);
$starring = trim($_POST["Starring"]);
$distributor = trim($_POST["Distributor"]);
// Escape strings and filter input to prevent SQL injection
$title = mysqli_real_escape_string($connection, $title);
$director = mysqli_real_escape_string($connection, $director);
$producer = mysqli_real_escape_string($connection, $producer);
$starring = mysqli_real_escape_string($connection, $starring);
$distributor = mysqli_real_escape_string($connection, $distributor);
$running_time = intval($running_time);
if (isset($_POST["Rel"])) { $release = $_POST["Rel"]; }
if (isset($_POST["Genre"])) { $genre = $_POST["Genre"]; }
if (isset($_POST["Rating"])) { $rating = $_POST["Rating"]; }
$form_errors = false;
// Check if fields are blank
if (is_blank($title) || is_blank($director) || is_blank($producer) || is_blank($release) || is_blank($running_time) || is_blank($starring) || is_blank($distributor)) {
$blank_message = "<p class='error-msg'>All fields are required.</p>";
$form_errors = true;
}
// Check if running time is a valid number
if (isset($running_time) && !filter_var($running_time, FILTER_VALIDATE_INT)) {
$number_message = "<p class='error-msg'>Running time is not a valid number.</p>";
$form_errors = true;
}
// Check if movie already exists
if (record_exists("SELECT * FROM Movie WHERE Movie.Title = '{$title}'")) {
$exists_message = "<p class='error-msg'>This movie already exists in the database.</p>";
$form_errors = true;
}
if ($form_errors == false) {
$insert_movie = "INSERT INTO Movie (Title, Director, Producer, Rel, Running, GenreID, Starring, Distributor, Rating) VALUES ('{$title}', '{$director}', '{$producer}', '{$release}', '{$running_time}'', '{$genre}', '{$starring}', '{$distributor}', '{$rating}')";
if (mysqli_query($connection, $insert_movie)) {
$movie_id = mysqli_insert_id($connection);
$success_message = "<p class='success-msg'>The movie has been successfully added to the database.</p>";
}
else {
$error_message = "<p class='error-msg'>Something went wrong. Please try again.</p>";
}
}
}
//php code ends here
?>
<!-- // PUT ERRORS HERE-->
<?php if (isset($blank_message)) { echo $blank_message; } ?>
<?php if (isset($number_message)) { echo $number_message; } ?>
<?php if (isset($date_message)) { echo $date_message; } ?>
<?php if (isset($exists_message)) { echo $exists_message; } ?>
<?php if (isset($success_message)) { echo $success_message; } ?>
<?php if (isset($error_message)) { echo $error_message; } ?>
<form action="<?php htmlspecialchars($_SERVER['PHP_SELF']); ?>" method="post" enctype="multipart/form-data" id="movieinput">
Title:<br>
<input type="text" name="Title" placeholder="e.g. Aliens" data-validation="required" value="<?php if (isset($title)) { echo $title; } ?>"><br>
Director:<br>
<input type="text" name="Director" placeholder="e.g. Ridley Scott" data-validation="required" value="<?php if (isset($director)) { echo $director; } ?>"><br>
Producer:<br>
<input type="text" name="Producer" placeholder="e.g. Gale Ann Hurd" data-validation="required" value="<?php if (isset($producer)) { echo $producer; } ?>"><br>
Release Date:<br>
<input type="date" name="Rel" format="yyyy/mm/dd" value="<?php if (isset($date)) { echo $date; } ?>"><br>
Running Time (mins):<br>
<input type="number" pattern=".{1,3}" name="Running" placeholder="e.g. 137" data-validation="required" value="<?php if (isset($running)) { echo $running; } ?>"><br>
Genre:<br><select name="Genre" value="<?php if (isset($genre)) { echo $genre; } ?>"><br>>
<option value="drama" name="drama">Drama</option>
<option value="documentary" name ="documentary">Documentary</option>
<option value="scifi" name="scifi" selected>Sci-Fi</option>
<option value="comedy" name="comedy">Comedy</option>
<option value="biopic" name ="biopic">Biopic</option>
<option value="horror" name="horror">Horror</option>
</select><br>
Starring:<br>
<input type="text" name="Starring" placeholder="e.g. Sigourney Weaver, Michael Biehn, William Hope" value="<?php if (isset($starring)) { echo $starring; } ?>"><br>
Distributor:<br>
<input type="text" name="Distributor" placeholder="e.g. 20th Century Fox" data-validation="required" value="<?php if (isset($distributor)) { echo $distributor; } ?>"><br>
Rating:<br><select name="Rating" value="<?php if (isset($rating)) { echo $rating; } ?>"><br>>>
<option
value="one">1
</option>
<option
value="two">2
</option>
<option
value="three">3
</option>
<option
value="four">4
</option>
<option
value="five">5
</option>
</select><br>
<br>
<input type="submit" name="submit" value="Submit"/>
</form>
<script> </script>
答案 0 :(得分：0)
您正在使用来自php的SQL数据库并使用mysqli_query()函数来插入哪些肯定不起作用。你必须使用PDO。访问SQL数据库。
Connect to SQL Server through PDO using SQL Server Driver
答案 1 :(得分：0)
> $insert_movie = "INSERT INTO Movie (Title, Director, Producer, Rel,
> Running, GenreID, Starring, Distributor, Rating) VALUES ('{$title}',
> '{$director}', '{$producer}', '{$release}', '{$running_time}'',
> '{$genre}', '{$starring}', '{$distributor}', '{$rating}')";
使用此代替
> $insert_movie = "INSERT INTO Movie (Title, Director, Producer, Rel,
> Running, GenreID, Starring, Distributor, Rating) VALUES ('$title',
> '$director', '$producer', '$release', '$running_time', '$genre',
> '$starring', '$distributor', '$rating')";
答案 2 :(得分：0)
在这种情况下，以下某些可能性会导致此问题。
确保INSERT查询中没有问题的一个建议。只需在浏览器中打印insert语句，然后在DB中手动执行。
$insert_movie = "INSERT INTO Movie (Title, Director, Producer, Rel, Running, GenreID, Starring, Distributor, Rating) VALUES ('{$title}', '{$director}', '{$producer}', '{$release}', '{$running_time}'', '{$genre}', '{$starring}', '{$distributor}', '{$rating}')";
echo $insert_movie; exit;
尝试此操作，如果insert语句中没有问题，将继续调试。
干杯！