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PHP implements student management system

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Jun 12, 2018 pm 05:32 PM

This article mainly introduces the specific implementation code of the PHP student management system in detail. Interested friends can refer to it.

The example in this article shares the source code of the PHP student management system for everyone. For reference, the specific content is as follows

Function:
1.Add/Delete/Modify
2.Data storage.
Interface distribution:
index.php --->Main interface
add.php --->stu add
action ---> add/del/update in sql (processing html form-->mysql Data storage && page jump)
edit.php --->stu modify
menu.php -->Homepage

1. index.php

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>学生信息管理</title>
 <script>
  function doDel(id) {
   if(confirm(&#39;确认删除?&#39;)) {
    window.location=&#39;action.php?action=del&id=&#39;+id;
   }
  }
 </script>
</head>
<body>
<center>
 <?php
 include ("menu.php");
 ?>
 <h3>浏览学生信息</h3>
 <table width="500" border="1">
  <tr>
   <th>ID</th>
   <th>姓名</th>
   <th>性别</th>
   <th>年龄</th>
   <th>班级</th>
   <th>操作</th>
  </tr>
  <?php
//  1. 链接数据库
  try{
   $pdo = new PDO("uri:mysqlPdo.ini","root","1");
  }catch (PDOException $e) {
   die(&#39;connection failed&#39;.$e->getMessage());
  }
  //2.执行sql
  $sql_select = "select * from stu";
  //3.data 解析
  foreach ( $pdo->query($sql_select) as $row) {
   echo "<tr>";
   echo "<th>{$row[&#39;id&#39;]} </th>";
   echo "<th>{$row[&#39;name&#39;]}</th>";
   echo "<th>{$row[&#39;sex&#39;]} </th>";
   echo "<th>{$row[&#39;age&#39;]} </th>";
   echo "<th>{$row[&#39;classid&#39;]}</th>";
   echo "<td>
     <a href=&#39;edit.php?id={$row[&#39;id&#39;]}&#39;>修改</a>
     <a href=&#39;javascript:void(0);&#39; onclick=&#39;doDel({$row[&#39;id&#39;]})&#39;>删除</a>
    </td>";
   echo "</tr>";
  }
  ?>
 </table>
</center>
</body>
</html>

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2. add.php

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>学生管理系统</title>
</head>
<body>
<center>
 
 <?php include (&#39;menu.php&#39;); ?>
 <h3>增加学生信息</h3>
 <form action="action.php?action=add" method="post">
  <table>
   <tr>
    <td>姓名</td>
    <td><input type="text" name="name"></td>
   </tr>
   <tr>
    <td>年龄</td>
    <td><input type="text" name="age"></td>
   </tr>
   <tr>
    <td>性别</td>
    <td><input type="radio" name="sex" value="男">男</td>
    <td><input type="radio" name="sex" value="女">女</td>
   </tr>
   <tr>
    <td>班级</td>
    <td><input type="text" name="classid"></td>
   </tr>
   <tr>
<!--    <td> </td>-->
    <td><a href="index.php">返回</td>
    <td><input type="submit" value="添加"></td>
    <td><input type="reset" value="重置"></td>
   </tr>
  </table> 
 </form>
  
</center>
</body>
</html>

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3. action.php

<?php
/**
 * Created by PhpStorm.
 * User: hyh
 * Date: 16-7-7
 * Time: 下午9:37
 */
//1. 链接数据库
try{
 $pdo = new PDO("uri:mysqlPdo.ini","root","1");
}catch (PDOException $e) {
//   echo &#39;Connection failed: &#39; . $e->getMessage();
 die(&#39;connection failed&#39;.$e->getMessage());
}
 
//2.action 的值做对操作
 
switch ($_GET[&#39;action&#39;]){
  
 case &#39;add&#39;://add 
  $name = $_POST[&#39;name&#39;];
  $sex = $_POST[&#39;sex&#39;];
  $age = $_POST[&#39;age&#39;];
  $classid = $_POST[&#39;classid&#39;];
   
  $sql = "insert into stu (name, sex, age, classid) values (&#39;{$name}&#39;, &#39;{$sex}&#39;,&#39;{$age}&#39;,&#39;{$classid}&#39;)";
  $rw = $pdo->exec($sql); 
  if ($rw > 0){
   echo "<script>alter(&#39;添加成功&#39;);</script>";
  }else{
   echo "<script>alter(&#39;添加失败&#39;);</script>";
  }
  header(&#39;Location: index.php&#39;);
  break; 
  
 case &#39;del&#39;://get
  $id = $_GET[&#39;id&#39;];
  $sql = "delete from stu where id={$id}";
  $rw = $pdo->exec($sql);
  if ($rw > 0){
   echo "<script>alter(&#39;删除成功&#39;);</script>";
  }else{
   echo "<script>alter(&#39;删除失败&#39;);</script>";
  }
  header(&#39;Location: index.php&#39;);
  break;
 
 case &#39;edit&#39;://post
  $id = $_POST[&#39;id&#39;];
  $name = $_POST[&#39;name&#39;]; 
  $age = $_POST[&#39;age&#39;];
  $classid = $_POST[&#39;classid&#39;];
  $sex = $_POST[&#39;sex&#39;];
   
//  echo $id, $age, $age, $name;
  $sql = "update stu set name=&#39;{$name}&#39;, age={$age},sex=&#39;{$sex}&#39;,classid={$classid} where id={$id};";
//  $sql = "update myapp.stu set name=&#39;jike&#39;,sex=&#39;女&#39;, age=24,classid=44 where id=17";
  print $sql;
  $rw = $pdo->exec($sql);
  if ($rw > 0){
   echo "<script>alter(&#39;更新成功&#39;);</script>";
  }else{
   echo "<script>alter(&#39;更新失败&#39;);</script>";
  }
  header(&#39;Location: index.php&#39;);
  break; 
  
 default:
  header(&#39;Location: index.php&#39;);
  break;
}

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4.edit.php

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>学生管理系统</title>
</head>
<body>
<center>
 <?php include (&#39;menu.php&#39;);
 //1. 链接数据库
 try{
  $pdo = new PDO("uri:mysqlPdo.ini","root","1");
 }catch (PDOException $e) {
  die(&#39;connection failed&#39;.$e->getMessage());
 }
 //2.执行sql
 $sql_select = "select * from stu where id={$_GET[&#39;id&#39;]}";
 $stmt = $pdo->query($sql_select);
 if ($stmt->rowCount() >0) {
  $stu = $stmt->fetch(PDO::FETCH_ASSOC); // 解析数据
 }else{
  die("no have this id:{$_GET[&#39;id&#39;]}");
 }
 ?>
  
 <h3>修改学生信息</h3>
 
 <form action="action.php?action=edit" method="post">
  <input type="hidden" name="id" value="<?php echo $stu[&#39;id&#39;];?>">
  <table>
   <tr>
    <td>姓名</td>
    <td><input type="text" name="name" value="<?php echo $stu[&#39;name&#39;];?>"></td>
   </tr>
   <tr>
    <td>年龄</td>
    <td><input type="text" name="age" value="<?php echo $stu[&#39;age&#39;];?>"></td>
   </tr>
   <tr>
    <td>性别</td>
    <td>
     <input type="radio" name="sex" value="男" <?php echo ($stu[&#39;sex&#39;] == "男")? "checked":"";?> >男
    </td>
    <td>
     <input type="radio" name="sex" value="女" <?php echo ($stu[&#39;sex&#39;] == "女")? "checked":"";?> >女
    </td>
   </tr>
   <tr>
    <td>班级</td>
    <td><input type="text" name="classid" value="<?php echo $stu[&#39;classid&#39;]?>"></td>
   </tr>
   <tr>
    <td> </td>
    <td><input type="submit" value="更新"></td>
    <td><input type="reset" value="重置"></td>
   </tr>
  </table>
 </form>
  
  
</center>
 
<?php
?>
</body>
</html>

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5. menu.php

<!DOCTYPE html>
<html lang="en">
<body>
 <h2>学生管理系统</h2>
 <a href="index.php"> 浏览学生</a>
 <a href="add.php"> 添加学生</a>
 <hr>
</body>
</html>

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