这是我的branch.php页面，当用户点击php中的编辑和删除图像时，我想要删除和更新行，直接在表中删除或更新该行。但它不能正常工作正在更新或删除。
<?php
$a1=mysql_connect('localhost','root1','oec@123');
$b1=mysql_select_db('rms',$a1);
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>branch</title>
<link href="styles/branch.css" rel="stylesheet" type="text/css">
</head>
<body>
<div id="wrapper">
<header id="top">
<h1>Reporter Management System</h1>
<nav id="mainnav">
<ul>
<li><a href="admin.php">Home</a></li>
<li><a href="branch.php">Branch</a></li>
<li><a href="branchadmin.php">Branch Admin</a></li>
<li><a href="reporter.php">Reporters</a></li>
<li><a href="accountant.php">Accountant</a></li>
<li><a href="setting.php">Settings</a></li>
<li><a href="">Log out</a></li>
</ul>
</nav>
</header>
<div id="hero">
<img src="News2.jpg" width="1000" height="320" alt=""/> </div>
<form role="form" action ="searchbranch.php" method="post">
<p><label for="Search">Search Branch :</label>
<input class="textbox" type="Search" placeholder="Name" name="Search">
<input type="submit" class="classname" value="Search" >
</form>
<form role= "form" action="createbranch.php" method="post">
<input type="submit" class="classname" value="Add Branch" onClick="href 'createbranch.php' " ></p>
</form>
<section class="page container">
<div>
<div class="span12">
<div class="box pattern ">
<div class="box-header">
<i class="icon-list"></i>
</div>
<table id="sample-table" class="table table-hover table-bordered tablesorter">
<thead>
<tr>
<th>Sl no</th>
<th>Branch</th>
<th>Description</th>
<th>Action</th>
</tr>
<?php
$w='SELECT Sl_no, branch, description from create_branch;';
$recordset=mysql_query($w,$a1) or die(mysql_error());
$totalrows=mysql_num_rows($recordset);
$row_recordset=mysql_fetch_assoc($recordset);
if($totalrows>0)
{
do
{
$r=$row_recordset['Sl_no'];
$d=$row_recordset['branch'];
$d1=$row_recordset['description'];
?>
</thead>
<tbody id='tb-content'>
<tr>
<td><?php echo $r ;?></td>
<td><?php echo $d ;?></td>
<td><?php echo $d1 ;?></td>
<td> <?php echo '
<a href="edit_branch.php?no='.$row_recordset['Sl_no'].'">'?>
<img src="pencil.png" />
<?php '</a>';? > | <?php echo'
<a href="branch_delete.php?no1='.$row_recordset['branch'].'">'?>
<img src="cross.png" /> <?php '</a>';?>
</td>
</tr>
<?php
}while($row_recordset=mysql_fetch_assoc($recordset));
}
mysql_free_result($recordset);
mysql_close($a1);
?>
</tbody>
</table>
</div>
</div>
</div>
</section>
</body>
<footer>
<p> </p><hr>
<center>©Copyright 2015 RepoterManagnmentSystem
</center>
</footer>
</div>
</body>
</html>
这是branch_delete.php
<?php
$cn=mysql_connect('localhost','root1',"oec@123");
$db_selected=mysql_select_db('rms',$cn);
$bn=$_REQUEST['no1'];
$sql='DELETE au.Sl_no,au.name,au.company_name,au.email_id,au.password,au.confirm_password,au.group,au.branch,au.phone,au.wordcount,au.rating,cb.Sl_no,cb.branch,cb.description from admin_user au,create_branch cb where cb.branch="'.$bn.'" AND au.branch=cb.branch ;';
$s1=mysql_query($sql,$cn);
mysql_close($cn);
header('Location: branch.php');
?>
这是update_branch.php
<?php
$a1=mysql_connect('localhost','root1','oec@123');
$b1=mysql_select_db('rms',$a1);
$bn=$_REQUEST['bname'];
$sn=$_REQUEST['Sl_no'];
$d=$_REQUEST['descp'];
$w= 'SELECT branch,description FROM create_branch;';
$recordset=mysql_query($w,$a1) or die(mysql_error());
$totalrows=mysql_num_rows($recordset);
$row_recordset=mysql_fetch_assoc($recordset);
if($totalrows>0)
{
do
{
$r=$row_recordset['branch'];
$s=$row_recordset['description'];
if($bn==$r and $d==$s)
{
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
<link href="styles/createbranch.css" rel="stylesheet" type="text/css">
</head>
<body>
<div id="wrapper">
<header id="top">
<h1>Reporter Management System</h1>
<nav id="mainnav">
<ul>
<li><a href="index.html">Home</a></li>
<li><a href="">Branch</a></li>
<li><a href="">Branch Admin</a></li>
<li><a href="">Reporters</a></li>
<li><a href="">Accountant</a></li>
<li><a href="">Settings</a></li>
<li><a href="">Log out</a></li>
</ul>
</nav>
</header>
<div id="hero">
<img src="News2.jpg" width="1000" height="320" alt=""/>
</div>
<form method="post" action="edit_branch.php">
<article id="main">
<?php echo '<h2>branch already exists</h2>' ; ?>
<h2>Create Branch</h2><hr>
<p><label for="branch name">Branch Name:</label><br><br>
<input class="textbox" type="text" placeholder=" <?php echo $bn ;?>" name="bname"></p><br>
<p><label for="Description">Description:</label><br><br>
<input class="textbox" type="text" placeholder="<?php echo $d ;?>" name="descp"></p><br>
<input type="submit" class="classname" value="Update Branch" ></p> <br>
</article>
</form>
<footer>
<p> </p><hr>
<center> © Copyright 2015 ReporterManagementSystem</center> </footer>
</div>
</body>
</html>
<?php
exit(0);
}
}
while($row_recordset=mysql_fetch_assoc($recordset));
$w1='UPDATE create_branch set branch="'.$bn.'" and description="'.$d.'" where Sl_no="'.$sn.'";';
$x=mysql_query($w1,$a1) or die(mysql_error());
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
</head>
<body>
<div id="wrapper">
<header id="top">
<h1>Reporter Management System</h1>
<nav id="mainnav">
<ul>
<li><a href="branchadmin.php">Home</a></li>
<li><a href="reporters.php">Reporters</a></li>
<li><a href="content1.php">News Content</a></li>
<li><a href="CreateUser.php">Add user</a></li>
<li><a href="">Log Out</a></li>
</ul>
</nav>
</header>
<img src="News2.jpg" width="1000" height="320" alt=""/>
<?php
echo "<br>";
if($x=="true")
{
header('Location: branch.php');
}
else
{
echo "fail to update branch";
}
echo"<br>";
}
mysql_free_result($recordset);
mysql_close($a1);
?>
答案 0 :(得分：0)
sql查询错误构建。 更新SQL查询应该如下所示
UPDATE table_name SET
column1=value1,column2=value2,...
WHERE some_column=some_value;
您的更新：
UPDATE create_branch SET
branch="'.$bn.'" ,
description="'.$d.'"
WHERE Sl_no="'.$sn.'"
SQL查询 - 删除：
DELETE FROM table_name
WHERE some_column=some_value;
您的删除：
DELETE FROM create_branch
WHERE cb.branch="'.$bn.'"
阅读有关FOREIGN KEY约束的MySQL documentation。
在两个表加入外键的情况下，删除或修改第一个结果中的记录将是第二个表中记录的适当操作。