我的问题是当我填写表格中的＆＃34; name＆＃34;值，利用它，并将更新与该值相关的所有其他字段，我得到＆＃34;数据库中没有提交名称的实例，＆＃34;什么时候肯定有。我已经工作了好几个小时而且完全难过了。任何帮助将不胜感激！
Quick Notes:
$host="localhost"
$pw=password (My personal password)
$db="akimble" (Database name)
tables name="pctable" (Tables name)
phpMyAdmin Screenshot of Table Screenshot of Website Issue
<!DOCTYPE html>
<html>
<head>
<!-- Specifies Character Encoding Type (Unicode) -->
<meta charset="UTF-8">
<title>Database One's Edit Entry Table</title>
<!-- Beginning of CSS -->
<style type="text/css">
body {
margin-left: auto;
margin-right: auto;
width: 100%;
max-width: 768px;
text-align: center;
width: 768px;
font-family: "Times New Roman", Arial, Helvetica;
}
table {
width: 768px;
border: 2px;
border-style: solid;
border-color: black;
text-align: center;
color: black;
}
td {
border: 2px solid;
}
</style>
<!-- End of CSS -->
<!-- Beginning of Body Section -->
<body>
<!-- Start of Menu -->
<table class="pheader" width="768px" width="100%">
<tr>
<td>
<h1>Database One's Files Source Code</h1>
</td>
</tr>
</table>
<table class="dbm"cellpadding="10" width="768px" width="100%">
<tr>
<td><a href="add_form.php">Add to Database</a></td>
<td><a href="search_form.php">Search Database</a></td>
<td><a href="edit_form.php">Edit Database Responce</a></td>
<td><a href="view.php">View Database Entries</a></td>
<td><a href="pages_sources.php">View Database's Page's Sources</a></td>
</tr>
</table>
<!-- End of Menu -->
<!-- Start of Edit & Update Form -->
<form action="edit_form.php" method="POST">
<table cellpadding="10">
<tr>
<td>
Please enter the name used on the entry you wish to update and edit:
</td>
<td>
<input type="text" id="name" name="name">
</td>
</tr>
<tr>
<td>
Please enter your central processing unit (CPU) model(s):
</td>
<td>
<input type="text" id="cpu" name="cpu">
</td>
</tr>
<tr>
<td>
Please enter your motherboard model:
</td>
<td>
<input type="text" id="motherboard" name="motherboard">
</td>
</tr>
<tr>
<td>
Please enter your graphic processing unit (GPU) model(s):
</td>
<td>
<input type="text" id="gpu" name="gpu">
</td>
</tr>
<tr>
<td>
Please enter your random access memory (RAM) model(s):
</td>
<td>
<input type="text" id="ram" name="ram">
</td>
</tr>
<tr>
<td>
Please enter the storage device where your operating system (OS) is installed:
</td>
<td>
<input type="text" id="storage" name="storage">
</td>
</tr>
<tr>
<td colspan="2">
<input type="submit" id="submit" name="submit" value="Update & Edit Entries">
</td>
</tr>
</table>
</form>
<!-- End of Edit & Update Form -->
<!--Beginning of PHP & MySQL Section -->
<?php
if (isset($_POST['submit'])){
$name = $_POST['name'];
$cpu = $_POST['cpu'];
$motherboard = $_POST['motherboard'];
$gpu = $_POST['gpu'];
$ram = $_POST['ram'];
$storage = $_POST['storage'];
include ("connect.php");
//$host="localhost"
//$id="akimble"(My personal user account id)
//$pw=password (My personal password)
//$db="akimble" (Database name)
//table name="pctable" (Table's name)
if ($name&&$cpu&&$motherboard&&$gpu&&$ram&&$storage){
$conn = mysql_connect("localhost", $id, $pw); //Start of Establishing Connection
if (!$conn) {
die ("Error connecting: " . mysql_error());
}
$update = mysql_query ("SELECT * FROM pctable WHERE name= '$name'") or die ("There was an error with the query.");
if (mysql_num_rows(!$update) != 0){
mysql_query ("UPDATE pctable SET cpu='$cpu' WHERE name='$name'") or die ("There was an error updating.");
mysql_query ("UPDATE pctable SET motherboard='$motherboard' WHERE name='$name'") or die ("There was an error updating.");
mysql_query ("UPDATE pctable SET gpu='$gpu' WHERE name='$name'") or die ("There was an error updating.");
mysql_query ("UPDATE pctable SET ram='$ram' WHERE name='$name'") or die ("There was an error updating.");
mysql_query ("UPDATE pctable SET storage='$storage' WHERE name='$name'") or die ("There was an error updating.");
echo "The update is complete";
}
else echo "There is no instance of the submitted name in the database";
}
else echo "Do not leave any fields empty";
}
?>
<!-- End of PHP & MySQL Section -->
</body>
<!-- End of Body Section -->
</html>