一个简单的php➕mysql项目学生信息管理系统,用于广大学子完成期末作业的参考,该系统实现增、删、改、查等基本功能。

<!doctype html> <html> <head> <meta charset="utf-8"> <title>无标题文档</title> <link rel="stylesheet" type="text/css" href="login.css" rel="external nofollow" > </head> <body> <div> <h2>Login</h2> <div> <form action="function.php?action=login" method="post"> 账号:<input type="number" name="user"> 密码:<input type="password" name="password"> <p>没有账号?点击<a href="newuser.php" rel="external nofollow" >注册</a></p> <div> <input type="submit" value="登录" ><input type="reset" value="重置"> </div> </form> </div> </div> </body> </html>
当输入密码点击登录后会弹出“登录成功”或者“账号或密码有错误提示”


<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<link rel="stylesheet" type="text/css" href="newuser.css" rel="external nofollow" >
</head>
<body>
<div>
<img src="微信图片_20220530195333333png.png" width="100px" height="100px">
<h3>学生成绩管理系统</h3>
</div>
<div > <a href="login.php" rel="external nofollow" ></a></div>
<div>
<h2 align="center">DeleteStudent</h2>
<form method="post" action="">
账 号:<input type="number" name="id">
密 码:<input type="password" name="password">
确认密码:<input type="password" name="repassword">
<input type="submit" value="注册" name="tj">
</form>
</div>
<?php
include("connection.php");
if(isset($_POST["tj"])){
$id=$_POST["id"];
$password=$_POST["password"];
$repassword=$_POST["repassword"];
if($password==$repassword){
connection();
$sql="insert into user(userid,password)values("".$id."","".$password."")";
$result=mysql_query($sql);
echo "<script>alert("注册成功!");location="login.php"</script>";
}else{
echo "<script>alert("密码不一致");location="newuser.php"</script>";
}
}
?>
</body>
</html>
当输入密码点击注册后会弹出“注册成功”或者“密码不一致”或者账号密码不为空提示·

点击图上的小房子可以返回登录界面

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<link rel="stylesheet" type="text/css" href="main.css">
</head>
<body>
<div>
<img src="微信图片_20220530195333333png.png" width="100px" height="100px" >
<h3>学生信息管理系统</h3>
</div>
<div> <a href="login.php" ></a></div>
<h3 ><a href="table.php">学生表</a></h3>
<div>
<a href="select.php">查询学生信息</a>
<a href="update.php">修改学生信息</a>
<a href="delete.php"class="bg3" >删除学生信息</a>
<a href="adding.php"class="bg4">添加学生信息</a>
</div>
</body>
</html>
点击主界面上的“学生表”可以进入学生表界面

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<link rel="stylesheet" type="text/css" href="table.css">
</head>
<body>
<div ">
<img src="微信图片_20220530195333333png.png" width="100px" height="100px" >
<h3>学生信息管理系统</h3>
</div>
<div> <a href="main.php" ></a></div>
<h2 align="center" >学生表</h2><br>
<table align="center" border="1" cellpadding="0 " cellspacing="0" width="700">
<tr align="center" height="30px">
<td>姓名</td>
<td>性别</td>
<td>年龄</td>
<td>学号</td>
<td>联系方式</td>
</tr>
<?PHP
include("connection.php");
connection();
$sql="select * from studenttable ";
mysql_query("SET CHARACTER SET utf-8");
$result=mysql_query($sql);
while($row=mysql_fetch_assoc($result)){
echo("<tr align="center" height="30px">");
echo("<td>".$row["Name"]."</td>");
echo("<td>".$row["Sex"]."</td>");
echo("<td>{$row["Age"]}</td>");
echo("<td>{$row["Sno"]}</td>");
echo("<td>{$row["TelphoneNumber"]}</td>");
echo("</tr>");
}
?>
</table>
</body>
</html>
点击图上的小房子可以返回主界面

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<link rel="stylesheet" type="text/css" href="select.css">
</head>
<body>
<div>
<img src="微信图片_20220530195333333png.png" width="100px" height="100px">
<h3>学生成绩管理系统</h3>
</div>
<div> <a href="main.php" ></a></div>
<div>
<h2 align="center">SelectStudent</h2><br>
<form method="post" action="">
学 号:<input type="number" name="sno"> <br><br>
<input type="submit" value="查询" name="cx" >
</form>
</div>
<table align="center" border="1" cellpadding="0 " cellspacing="0" width="700">
<tr align="center" height="30px">
<td>姓名</td>
<td>性别</td>
<td>年龄</td>
<td>学号</td>
<td>联系方式</td>
</tr>
<?PHP
include("connection.php");
connection();
if(isset($_POST["cx"])){
$Sno=$_POST["sno"];
$sql=$sql="select * from studenttable where Sno="".$Sno.""";
mysql_query("SET CHARACTER SET utf-8");
$result=mysql_query($sql);
if(mysql_num_rows($result)>0)
{
echo "<script>alert("查询成功!");</script>";
}else{
echo "<script>alert("学号不存在!");</script>";
}
while($row=mysql_fetch_assoc($result)){
echo("<tr align="center" height="30px">");
echo("<td>".$row["Name"]."</td>");
echo("<td>".$row["Sex"]."</td>");
echo("<td>{$row["Age"]}</td>");
echo("<td>{$row["Sno"]}</td>");
echo("<td>{$row["TelphoneNumber"]}</td>");
echo("</tr>");}
}
?>
</table>
</body>
</html>
点击图上的小房子可以返回主界面

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<link rel="stylesheet" type="text/css" href="update.css">
</head>
<body>
<div>
<img src="微信图片_20220530195333333png.png" width="100px" height="100px">
<h3>学生成绩管理系统</h3>
</div>
<div > <a href="main.php" ></a></div>
<div>
<h2 align="center">UpdateStudent</h2><br>
<form method="post" action="">
姓 名:<input type="text" name="name"> <br><br>学 号:<input type="number" name="sno"><br><br>
性 别:<input type="radio" name="sex" value="男" checked>男<input type="radio" name="sex" value="女">女 <br><br>
年 龄:<input type="number" name="age"><br><br>
联系方式: <input type="tel" name="telphone"><br>
<input type="submit" value="修改" name="tj">
</form>
</div>
<?php
include("connection.php");
if(isset($_POST["tj"])){
$Name=$_POST["name"];
$Sno=$_POST["sno"];
connection();
$sql="select * from studenttable where Name="".$Name."" and Sno="".$Sno.""";
$result=mysql_query($sql);
if(mysql_num_rows($result)>0){
$Name=$_POST["name"];
$Sno=$_POST["sno"];
$Sex=$_POST["sex"];
$Age=$_POST["age"];
$tel=$_POST["telphone"];
$sql="update studenttable set Sex="".$Sex."",Age="".$Age."",TelphoneNumber="".$tel.""where Sno="".$Sno."" and Name="".$Name.""";
mysql_query($sql)or die(mysql_error());
echo("<script>alert("修改成功");window.location.href="table.php";</script>");
}
else{
echo("<script>alert("学号或姓名不存在");</script>");
}
}
?>
</body>
</html>
点击图上的小房子可以返回主界面

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<link rel="stylesheet" type="text/css" href="delete.css">
</head>
<body>
<div>
<img src="微信图片_20220530195333333png.png" width="100px" height="100px">
<h3>学生成绩管理系统</h3>
</div>
<div > <a href="main.php" ></a></div>
<div>
<h2 align="center">DeleteStudent</h2><br>
<form method="post" action="">
姓 名:<input type="text" name="name"> <br><br>学 号:<input type="number" name="sno"><br><br>
<input type="submit" value="删除" name="tj">
</form>
</div>
<?php
include("connection.php");
if(isset($_POST["tj"])){
$Name=$_POST["name"];
$Sno=$_POST["sno"];
connection();
$sql="select * from studenttable where Name="".$Name."" and Sno="".$Sno.""";
$result=mysql_query($sql);
if(mysql_num_rows($result)>0){
$Name=$_POST["name"];
$Sno=$_POST["sno"];
$sql="delete from studenttable where Sno="".$Sno."" and Name="".$Name.""";
mysql_query($sql)or die(mysql_error());
echo("<script>alert("删除成功");window.location.href="table.php";</script>");
}
else{
echo("<script>alert("学号或姓名不存在");</script>");
}
}
?>
</body>
</html>
点击图上的小房子可以返回主界面

点击图上的小房子可以返回主界面


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