PHP development of simple book backend management system new book management modification and deletion
ContinueIntroduce the database file config.php file
and the ly_check.php file that determines whether the administrator is logged in
in the HTML page Call the css.css style
Delete the function file and set it to the del.php file
<?php
include("config.php");
require_once('ly_check.php');
$SQL = "DELETE FROM yx_books where id='".$_GET['id']."'";
$arry=mysqli_query($link,$sql);
if($arry){
echo "<script> alert('删除成功');location='list.php';</script>";
}
else
echo "删除失败";
?>Modify the function setting to the update.php file
<?php
include("config.php");
require_once('ly_check.php');
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>图书管理系统新书修改</title>
<link rel="stylesheet" href="css.css" type="text/css">
<script type="text/javascript">
<!--
function myform_Validator(theForm)
{
if (theForm.name.value == "")
{
alert("请输入书名。");
theForm.name.focus();
return (false);
}
if (theForm.price.value == "")
{
alert("请输入书名价格。");
theForm.price.focus();
return (false);
}
if (theForm.type.value == "")
{
alert("请输入书名所属类别。");
theForm.type.focus();
return (false);
}
return (true);
}
//--></script>
</head>
<?php
$sql="select * from yx_books where id='".$_GET['id']."'";
$arr=mysqli_query($link,$sql);
$rows=mysqli_fetch_row($arr);
//mysqli_fetch_row() 函数从结果集中取得一行，并作为枚举数组返回。一条一条获取，输出结果为$rows[0],$rows[1],$rows[2].......
?>
<?php
if($_POST['action']=="modify"){
$sqlstr = "update yx_books set name = '".$_POST['name']."', price = '".$_POST['price']."', uploadtime = '".$_POST['uptime']."', type = '".$_POST['type']."', total = '".$_POST['total']."' where id='".$_GET['id']."'";
$arry=mysqli_query($link,$sqlstr);
if ($arry){
echo "<script> alert('修改成功');location='list.php';</script>";
}
else{
echo "<script>alert('修改失败');history.go(-1);</script>";
}
}
?>
<body>
<form id="myform" name="myform" method="post" action="" onSubmit="return myform_Validator(this)">
<table width="100%" height="173" border="0" align="center" cellpadding="2" cellspacing="1" class="table">
<tr>
<td colspan="2" align="left" class="bg_tr"> 后台管理 >> 新书修改</td>
</tr>
<tr>
<td width="31%" align="right" class="td_bg">书名：</td>
<td width="69%" class="td_bg">
<input name="name" type="text" id="name" value="<?php echo $rows[1] ?>" size="15" maxlength="30" />
</td>
</tr>
<tr>
<td align="right" class="td_bg">价格：</td>
<td class="td_bg">
<input name="price" type="text" id="price" value="<?php echo $rows[2]; ?>" size="5" maxlength="15" />
</td>
</tr>
<tr>
<td align="right" class="td_bg">入库时间：
</td>
<td class="td_bg">
<label>
<input name="uptime" type="text" id="uptime" value="<?php echo $rows[3] ; ?>" size="17" />
</label>
</td>
</tr>
<tr>
<td align="right" class="td_bg">所属类别：
</td>
<td class="td_bg"><label>
<input name="type" type="text" id="type" value="<?php echo $rows[4]; ?>" size="6" maxlength="19" />
</label></td>
</tr>
<tr>
<td align="right" class="td_bg">入库总量：</td>
<td class="td_bg"><input name="total" type="text" id="total" value="<?php echo $rows[5]; ?>" size="5" maxlength="15" />
本</td>
</tr>
<tr>
<td align="right" class="td_bg">
<input type="hidden" name="action" value="modify">
<input type="submit" name="button" id="button" value="提交"/></td>
<td class="td_bg">
<input type="reset" name="button2" id="button2" value="重置"/></td>
</tr>
</table>
</form>
</body>
</html>
new file
<?php
include("config.php");
require_once('ly_check.php');
$SQL = "DELETE FROM yx_books where id='".$_GET['id']."'";
$arry=mysqli_query($link,$sql);
if($arry){
echo "<script> alert('删除成功');location='list.php';</script>";
}
else
echo "删除失败";
?>
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