• 数据库课程设计 PHP web实现


    纪念一下自己写的东西.. 都说很垃圾就是了

    直接用XAMPP做的 菜鸟网上学的PHP和HTML

    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>学生信息</title>
    </head>
    
    <style>
    body {
        background: rgba(12, 100, 129, 1) url('https://images2018.cnblogs.com/blog/1393985/201806/1393985-20180613124043614-112674236.jpg') fixed no-repeat;
        background-position: 50% 5%;
        background-size: cover;
    }
    </style>
    
    <body>
        <center>
        <br><br>
        <h2>学生信息管理</h2>
        <a href="myindex.php">浏览学生</a>
        <a href="login.php">增删学生</a>
        <hr>
        <br><br><br><br><br>
            <form action="search.php" method="post">
                <input type="text" name = "fname"><br>
                <input type="radio" name = "vehicle" value="name">姓名<br>
                <input type="radio" name = "vehicle" value="num" checked="checked">学号<br>
                <input type="radio" name = "vehicle" value="course" checked="checked">课程<br>
                <input type="submit" value = "搜索">
            </form>
        </center>
        <br><br><br><br><br><br><br><br><br><br><br><br><br>
    </body>
    </html>
    test1
    <!DOCTYPE html>
    <head>
        <meta charset = "UTF-8">
        <title>学生信息管理</title>
    </head>
    
    <style>
    body {
        background: rgba(12, 100, 129, 1) url('https://images2018.cnblogs.com/blog/1393985/201806/1393985-20180613124043614-112674236.jpg') fixed no-repeat;
        background-position: 50% 5%;
        background-size: cover;
    }
    </style>
    
    <body>
    <center>
        <h3>浏览学生信息<h3>
        <table width = "800" border = "1">
            <tr>
                <th>学号</th>
                <th>姓名</th>
                <th>课程1</th>
                <th>课程2</th>
                <th>课程3</th>
                <th>课程4</th>
                <th>课程5</th>
            </tr>
            <?php
            $dbhost = "localhost:3306";
            $dbuser = "root";
            $dbpass = "";
    
            $conn = mysqli_connect($dbhost, $dbuser, $dbpass);
            if(!$conn)
            {
                die('Could not connect: ' . mysqli_error());
            }
            mysqli_query($conn , "set names utf8");
            mysqli_select_db($conn, 'demo');
    
            $sql = "SELECT * FROM stu";
            $retval = mysqli_query($conn, $sql);
    
            while($row = mysqli_fetch_array($retval, MYSQLI_ASSOC))
            {
                echo "<tr>";
                echo "<td>{$row['学号']}</td> ";
                echo "<td>{$row['姓名']}</td> ";
                echo "<td>{$row['课程1']} </td> ";
                echo "<td>{$row['课程2']} </td> ";
                echo "<td>{$row['课程3']} </td> ";
                echo "<td>{$row['课程4']} </td> ";
                echo "<td>{$row['课程5']} </td> ";
                echo "</tr>";
            }
    
            ?>
        </table>
    </center>
    <h3>
    &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
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    <a href="test1.php">返回首页</a>
    </h3>
    </body>
    </html>
    myindex
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>课程查询</title>
    </head>
    
    <style>
    body {
        background: rgba(12, 100, 129, 1) url('https://images2018.cnblogs.com/blog/1393985/201806/1393985-20180613124043614-112674236.jpg') fixed no-repeat;
        background-position: 50% 5%;
        background-size: cover;
    }
    </style>
    
    
    <body>
        <center>
            <?php
            $dbhost = "localhost:3306";
            $dbuser = "root";
            $dbpass = "";
    
            $conn = mysqli_connect($dbhost, $dbuser, $dbpass);
            if(!$conn)
            {
                die('Could not connect: ' . mysqli_error());
            }
            mysqli_query($conn , "set names utf8");
            mysqli_select_db($conn, 'demo');
    
            $sqlll = $_POST["fname"];
            $sqlcheck = $_POST["vehicle"];
    
            echo "<br><br><br><br><br><br><br><br><br><br><br><br><br>";
            if($sqlcheck === 'course')
            {
                echo "<table width = '400' border = '2'>";
                echo "<tr>";
                echo "<th>学号</th>";
                echo "<th>姓名</th>";
                echo "</tr>";
    
                $sql = "SELECT `学号`, `姓名`, `课程1`, `课程2`, `课程3`, `课程4`, `课程5` FROM `stu` WHERE `课程1` LIKE '$sqlll'";
                $retval = mysqli_query($conn, $sql);
                while($row = mysqli_fetch_array($retval, MYSQLI_ASSOC))
                {
                    echo "<tr>";
                    echo "<td>{$row['学号']}</td> ";
                    echo "<td>{$row['姓名']}</td> ";
                    echo "</tr>";
                }
    
                $sql = "SELECT `学号`, `姓名`, `课程1`, `课程2`, `课程3`, `课程4`, `课程5` FROM `stu` WHERE `课程2` LIKE '$sqlll'";
                $retval = mysqli_query($conn, $sql);
                while($row = mysqli_fetch_array($retval, MYSQLI_ASSOC))
                {
                    echo "<tr>";
                    echo "<td>{$row['学号']}</td> ";
                    echo "<td>{$row['姓名']}</td> ";
                    echo "</tr>";
                }
    
                $sql = "SELECT `学号`, `姓名`, `课程1`, `课程2`, `课程3`, `课程4`, `课程5` FROM `stu` WHERE `课程3` LIKE '$sqlll'";
                $retval = mysqli_query($conn, $sql);
                while($row = mysqli_fetch_array($retval, MYSQLI_ASSOC))
                {
                    echo "<tr>";
                    echo "<td>{$row['学号']}</td> ";
                    echo "<td>{$row['姓名']}</td> ";
                    echo "</tr>";
                }
    
                $sql = "SELECT `学号`, `姓名`, `课程1`, `课程2`, `课程3`, `课程4`, `课程5` FROM `stu` WHERE `课程4` LIKE '$sqlll'";
                $retval = mysqli_query($conn, $sql);
                while($row = mysqli_fetch_array($retval, MYSQLI_ASSOC))
                {
                    echo "<tr>";
                    echo "<td>{$row['学号']}</td> ";
                    echo "<td>{$row['姓名']}</td> ";
                    echo "</tr>";
                }
    
                $sql = "SELECT `学号`, `姓名`, `课程1`, `课程2`, `课程3`, `课程4`, `课程5` FROM `stu` WHERE `课程5` LIKE '$sqlll'";
                $retval = mysqli_query($conn, $sql);
                while($row = mysqli_fetch_array($retval, MYSQLI_ASSOC))
                {
                    echo "<tr>";
                    echo "<td>{$row['学号']}</td> ";
                    echo "<td>{$row['姓名']}</td> ";
                    echo "</tr>";
                }
                echo "</table>";
            }
            else {
                if($sqlcheck === 'name') {$sql = "SELECT * FROM `stu` WHERE `姓名` LIKE '$sqlll'";}
                else {$sql = "SELECT * FROM `stu` WHERE `学号` LIKE '$sqlll'";}
    
    
                echo "<table width = '800' border = '1'>";
                echo "<tr>";
                echo "<th>学号</th>";
                echo "<th>姓名</th>";
                echo "<th>课程1</th>";
                echo "<th>课程2</th>";
                echo "<th>课程3</th>";
                echo "<th>课程4</th>";
                echo "<th>课程5</th>";
    
    
                $retval = mysqli_query($conn, $sql);
                while($row = mysqli_fetch_array($retval, MYSQLI_ASSOC))
                {
                    echo "<tr>";
                    echo "<td>{$row['学号']}</td> ";
                    echo "<td>{$row['姓名']}</td> ";
                    echo "<td>{$row['课程1']} </td> ";
                    echo "<td>{$row['课程2']} </td> ";
                    echo "<td>{$row['课程3']} </td> ";
                    echo "<td>{$row['课程4']} </td> ";
                    echo "<td>{$row['课程5']} </td> ";
                    echo "</tr>";
                }
                echo "</table>";
            }
    
            ?>
        </center>
        <h3>
        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
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        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
        <a href="test1.php">返回首页</a>
        </h3>
    </body>
    </html>
    search
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>添加学生</title>
    </head>
    
    <style>
    body {
        background: rgba(12, 100, 129, 1) url('https://images2018.cnblogs.com/blog/1393985/201806/1393985-20180613124043614-112674236.jpg') fixed no-repeat;
        background-position: 50% 5%;
        background-size: cover;
    }
    </style>
    
    <body>
        <?php
        $use = $_POST["user"];
        $pass = $_POST["password"];
    
        echo "<br><br><br><br><br><br><br><br><br><br>";
        echo "<center>";
        if($use === "admin" && $pass == "123")
        {
            echo "<h1>Welcome, lwq</h1>";
            echo "<br>";
    
            echo "<form action='addaction.php' method='post'>";
            echo "<input type='text' name = 's1'>学号<br>";
            echo "<input type='text' name = 's2'>姓名<br>";
            echo "<input type='text' name = 's3'>课程1<br>";
            echo "<input type='text' name = 's4'>课程2<br>";
            echo "<input type='text' name = 's5'>课程3<br>";
            echo "<input type='text' name = 's6'>课程4<br>";
            echo "<input type='text' name = 's7'>课程5<br>";
            echo "<input type='submit' value = '添加'>";
            echo "</form>";
    
            echo "<br><br><br>";
            echo "<form action='delete.php' method='post'>";
            echo "<input type='text' name = 'd1'>学号<br>";
            echo "<input type='text' name = 'd2'>姓名<br>";
            echo "<input type='submit' value = '删除'>";
            echo "</form>";
        }
        else {
            echo "sorry, assess denied!!<br>";
            header("Location:test1.php");
        }
        echo "</center>";
        ?>
    
        <h3>
        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
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        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
        <a href="test1.php">返回首页</a>
        </h3>
    </body>
    </html>
    add
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>登陆</title>
    </head>
    
    <style>
    body {
        background: rgba(12, 100, 129, 1) url('https://images2018.cnblogs.com/blog/1393985/201806/1393985-20180613124043614-112674236.jpg') fixed no-repeat;
        background-position: 50% 5%;
        background-size: cover;
    }
    </style>
    
    <body>
        <br><br><br><br><br><br><br><br><br><br>
        <center>
            <form action="add.php" method="post">
                用户: <input type="text" name="user"><br>&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                密码: <input type="password" name="password">
                <input type="submit" value = "登陆">
            </form>
        </center>
        <h3>
        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
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        <a href="test1.php">返回首页</a>
        </h3>
    </body>
    </html>
    login
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>添加学生</title>
    </head>
    
    <style>
    body {
        background: rgba(12, 100, 129, 1) url('https://images2018.cnblogs.com/blog/1393985/201806/1393985-20180613124043614-112674236.jpg') fixed no-repeat;
        background-position: 50% 5%;
        background-size: cover;
    }
    </style>
    
    <body>
        <br><br><br><br><br><br><br><br><br><br>
        <center>
        <?php
            $r1 = $_POST["s1"];
            $r2 = $_POST["s2"];
            $r3 = $_POST["s3"];
            $r4 = $_POST["s4"];
            $r5 = $_POST["s5"];
            $r6 = $_POST["s6"];
            $r7 = $_POST["s7"];
    
            $dbhost = "localhost:3306";
            $dbuser = "root";
            $dbpass = "";
    
            $conn = mysqli_connect($dbhost, $dbuser, $dbpass);
            if(!$conn)
            {
                die('Could not connect: ' . mysqli_error());
            }
            mysqli_query($conn , "set names utf8");
            mysqli_select_db($conn, 'demo');
    
            $sql = "INSERT INTO `stu` (`学号`, `姓名`, `课程1`, `课程2`, `课程3`, `课程4`, `课程5`) VALUES ('$r1', '$r2', '$r3', '$r4', '$r5', '$r6', '$r7');";
            $retval = mysqli_query($conn, $sql);
            echo "添加成功";
        ?>
        </center>
        <h3>
        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
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        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
        <a href="add.php">继续添加</a>
        <a href="test1.php">返回首页</a>
    </body>
    </html>
    addaction
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>学生信息</title>
    </head>
    
    <style>
    body {
        background: rgba(12, 100, 129, 1) url('https://images2018.cnblogs.com/blog/1393985/201806/1393985-20180613124043614-112674236.jpg') fixed no-repeat;
        background-position: 50% 5%;
        background-size: cover;
    }
    </style>
    
    <body>
        <br><br><br><br><br><br><br><br><br><br>
        <center>
            <?php
                $t1 = $_POST["d1"];
                $t2 = $_POST["d2"];
    
                $dbhost = "localhost:3306";
                $dbuser = "root";
                $dbpass = "";
    
                $conn = mysqli_connect($dbhost, $dbuser, $dbpass);
                if(!$conn)
                {
                    die('Could not connect: ' . mysqli_error());
                }
                mysqli_query($conn , "set names utf8");
                mysqli_select_db($conn, 'demo');
    
                $sql = "DELETE FROM `stu` WHERE 学号 = '$t1'";
                $retval = mysqli_query($conn, $sql);
                $sql = "DELETE FROM `stu` WHERE 姓名 = '$t2'";
                $retval = mysqli_query($conn, $sql);
                echo "删除成功";
             ?>
        </center>
        <h3>
        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
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        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
        <a href="test1.php">返回首页</a>
    </body>
    </html>
    delete
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  • 原文地址:https://www.cnblogs.com/lwqq3/p/10111922.html
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