运行此代码时没有收到任何错误，但即使没有数据存储到数据库中。所有数据库连接都有效请帮助解决这个谜。数据库结构也有17个字段，我检查了适当的数据类型。
表单页面编码
<?php include('config.php');
if(isset($_POST['submit']))
{
$purchase_date=$_POST['purchase_date'];
$assession_no=$_POST['assession_no'];
$book_title=$_POST['book_title'];
$edition=$_POST['edition'];
$publisher=$_POST['publisher'];
$year_of_publish=$_POST['year_of_publish'];
$volume=$_POST['volume'];
$number_of_pages=$_POST['number_of_pages'];
$source=$_POST['source'];
$cost=$_POST['cost'];
$quantity=$_POST['quantity'];
$note=$_POST['note'];
$category=$_POST['category'];
$sql=mysql_query("insert into add_book(b_id,purchase_date,assession_no,book_title,edition,publisher,year_of_publish,volume,number_of_pages,source,cost,quantity,note,category) values('','$purchase_date','$assession_no','$book_title','$edition','$publisher','$year_of_publish','$volume','$number_of_pages','$source','$cost','$quantity','$note','$category')");
} ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<form action="" class="basic-grey" >
<label>
<span>Purchase Date:</span>
<input name="purchase_date" type="text" class="datepicker" id="popup_container" required/>
</label>
<label>
<span>Assession No. :</span>
<input name="assession_no" type="text" value="" required/>
</label>
<label>
<span>Book Title :</span>
<input type="text" name="book_title" id="title" placeholder="" value="" required/>
</label>
<label>
<span>Edition :</span>
<input name="edition" type="text" value="" required/>
</label>
<label>
<span>Publisher :</span>
<input name="publisher" type="text" value="" required/>
</label>
<label>
<span>Year of Publish:</span>
<input type="text" name="year_of_publish" value="" required/>
</label>
<label>
<span>Volume:</span>
<input name="volume" type="text" value="" required/>
</label>
<label>
<span>Page:</span>
<input name="number_of_pages" type="text" value="" required/>
</label>
<label>
<span>Source:</span>
<input name="source" type="text" value="" required/>
</label>
<label>
<span>Cost:</span>
<input name="cost" type="text" value="" required/>
</label>
<label>
<span>Quantity :</span>
<input name="quantity" type="text" value="" required/>
</label>
<label>
<span>General Note :</span>
<textarea id="message" name="note" placeholder="" value=""></textarea>
</label>
<label>
<span>Category :</span><select name="category" required>
<option value="Engineering">Engineering</option>
<option value="General">General</option>
<option value="Competitive">Competitive</option>
<option value="Reading Space">Reading Space</option>
</select>
</label>
<label>Image Upload</label>
<input type="file" name="photo" /></span>
<a href="#" class="btn fileupload-exists" data-dismiss="fileupload">Remove</a>
<label>
<span> </span>
<input type="submit" name="submit" class="button" />
</label>
</form>
</body>
</html>
Config.php编码
<?php
$con=mysql_connect("localhost","root","") ;
$db=mysql_select_db("friendslib",$con) ;
?>
答案 0 :(得分：1)
将它放在页面顶部 使用error_reporting（E_ALL）; ini_set（＆＃39; display_errors＆＃39;，1）;
并将表单类型设置为post和 $ sql = mysql_query（＆＃34;你的代码＆＃34;）或死（mysql_error（））;
答案 1 :(得分：0)
您没有处理任何错误！你怎么知道你没有收到任何错误？
将其放在页面顶部：
error_reporting(-1);
ini_set('display_errors', 'On');
额外注意：
不要使用mysql函数。你需要使用mysqli或PDO。
使用此代码：
$sql=mysql_query("insert into add_book(purchase_date,assession_no,book_title,edition,publisher,year_of_publish,volume,number_of_pages,source,cost,quantity,note,category) values('$purchase_date','$assession_no','$book_title','$edition','$publisher','$year_of_publish','$volume','$number_of_pages','$source','$cost','$quantity','$note','$category')");
}
注意：
我发现您的查询b_id中有but you are leaving it empty in the values！所以我修好了。我希望它有所帮助。
第二次修改：
您发布的错误，显示mysqli错误，但您使用的是mysql！您无法将mysqli与mysql一起使用。
请您确保在config.php和other_php_page.php中使用mysqli或mysql？
答案 2 :(得分：0)
这是错误：
<form action="" class="basic-grey" >
将其更改为：
<form action="" class="basic-grey" method="post">
Default form method为get，如果您未设置，则假定为get。
您正在检查$_POST['submit']，因为此而永远不会设置。
注意：
不使用mysql函数，它们已被弃用，将在下一版本的PHP中删除。你需要使用mysqli或PDO。
答案 3 :(得分：0)
你不处理任何事情必须填写这样的行动和方法：
<form action="NAME OF THIS PAGE like page.php" method="post" >
</form>
`
答案 4 :(得分：0)
使用以下代码解决错误：
<?php
$con=mysqli_connect("localhost","root","", "friendslib") ;
error_reporting(-1);
ini_set('display_errors', 'On');
if(isset($_POST['submit']))
{
$purchase_date=$_POST['purchase_date'];
$assession_no=$_POST['assession_no'];
$book_title=$_POST['book_title'];
$edition=$_POST['edition'];
$publisher=$_POST['publisher'];
$year_of_publish=$_POST['year_of_publish'];
$volume=$_POST['volume'];
$number_of_pages=$_POST['number_of_pages'];
$source=$_POST['source'];
$cost=$_POST['cost'];
$quantity=$_POST['quantity'];
$note=$_POST['note'];
$category=$_POST['category'];
$sql=mysqli_query($con,"insert into add_book(purchase_date,assession_no,book_title,edition,publisher,year_of_publish,volume,number_of_pages,source,cost,quantity,note,category) values('$purchase_date','$assession_no','$book_title','$edition','$publisher','$year_of_publish','$volume','$number_of_pages','$source','$cost','$quantity','$note','$category')");
} ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<form action="" class="basic-grey" method="post" >
<label>
<span>Purchase Date:</span>
<input name="purchase_date" type="text" class="datepicker" id="popup_container" required/>
</label>
<label>
<span>Assession No. :</span>
<input name="assession_no" type="text" value="" required/>
</label>
<label>
<span>Book Title :</span>
<input type="text" name="book_title" id="title" placeholder="" value="" required/>
</label>
<label>
<span>Edition :</span>
<input name="edition" type="text" value="" required/>
</label>
<label>
<span>Publisher :</span>
<input name="publisher" type="text" value="" required/>
</label>
<label>
<span>Year of Publish:</span>
<input type="text" name="year_of_publish" value="" required/>
</label>
<label>
<span>Volume:</span>
<input name="volume" type="text" value="" required/>
</label>
<label>
<span>Page:</span>
<input name="number_of_pages" type="text" value="" required/>
</label>
<label>
<span>Source:</span>
<input name="source" type="text" value="" required/>
</label>
<label>
<span>Cost:</span>
<input name="cost" type="text" value="" required/>
</label>
<label>
<span>Quantity :</span>
<input name="quantity" type="text" value="" required/>
</label>
<label>
<span>General Note :</span>
<textarea id="message" name="note" placeholder="" value=""></textarea>
</label>
<label>
<span>Category :</span><select name="category" required>
<option value="Engineering">Engineering</option>
<option value="General">General</option>
<option value="Competitive">Competitive</option>
<option value="Reading Space">Reading Space</option>
</select>
</label>
<label>Image Upload</label>
<input type="file" name="photo" /></span>
<a href="#" class="btn fileupload-exists" data-dismiss="fileupload">Remove</a>
<label>
<span> </span>
<input type="submit" name="submit" class="button" />
</label>
</form>
</body>
</html>