今天完成了php的数据库操作实验第一部分。
ex01a.php代码
<html> <head> <title>添加</title> </head> <body> <center> <form method="post" action="act01.php?action=add"> <table> <tr style="background: #666666;font-size: 30px ;text-align: center"> <td colspan="2">添加个人资料</td> </tr> <tr> <td>姓名</td> <td><input id="name" name="name" type="text"/></td> </tr> <tr> <td>性别</td> <td><input type="radio" name="sex" value="男"/>男 <input type="radio" name="sex" value="女"/>女 </td> </tr> <tr> <td>兴趣爱好</td> <td><input type="text" name="hobby" id="hobby"/></td> </tr> <tr> <td>家庭住址</td> <td><select id="address" name="address"> <option value="">请选择您的居住区域</option> <option value="上海">上海</option> <option value="广州">广州</option> <option value="北京">北京</option> </select></td> </tr> <tr> <td>备注</td> <td><textarea id="remark" name="remark" rows="5" cols="30"></textarea></td> </tr> <tr> <td><input type="submit" value="提交"/> </td> <td><input type="reset" value="重置"/> </tr> </table> </form> </center> </body> </html>
ex01b.php代码
<!DOCTYPE html> <head> <meta charset="UTF-8"> <title></title> <script> function doDel(id) { if (confirm("确定要删除么？")) { window.location = 'act01.php?action=del&id=' + id; } } </script> </head> <style> th, td { width: 100%; word-break: keep-all; /* 不换行 */ white-space: nowrap; /* 不换行 */ overflow: hidden; /* 内容超出宽度时隐藏超出部分的内容 */ text-overflow: ellipsis; /* 当对象内文本溢出时显示省略标记(...) ；需与overflow:hidden;一起使用。*/ } </style> <body> <center> <table width="600" border="1"> <tr style="background: #666666;font-size: 30px ;text-align: center"> <td colspan="6">学生个人信息表</td> </tr> <tr> <th>姓名</th> <th>性别</th> <th>爱好</th> <th>家庭住址</th> <th>备注</th> <th>操作</th> </tr> <?php //1.连接数据库 $conn=mysqli_connect("localhost","root","123456","mydb",'3307') or die("数据库连接失败"); //2.解决中文乱码问题 mysqli_query($conn,'set names utf8'); //3.执行sql语句，并实现解析和遍历 $sql="select * from info"; $result=mysqli_query($conn,$sql)or die("数据查询失败"); while($row=mysqli_fetch_row($result)){ $cols=count($row); echo "<tr>"; for($i=0;$i<$cols-1;$i++){ echo "<td>$row[$i]</td>"; } echo "<td> <a href='javascript:doDel({$row[5]})'>删除</a> <a href='ex01c.php?id=({$row[5]})'>修改</a> </td>"; echo "</tr>"; } ?> </table> </center> </body> </html>
ex01c.php代码
<html> <head> <meta charset="UTF-8"> <title>学生信息管理</title> </head> <body> <center> <?php // .连接数据库 $conn=mysqli_connect("localhost","root","123456","mydb",'3307') or die("数据库连接失败"); // .防止中文乱码 mysqli_query($conn,'set names utf8'); // .拼接sql语句，取出信息 $sql = "SELECT * FROM info WHERE id =".$_GET['id']; $result=mysqli_query($conn,$sql)or die("数据查询失败"); if($row=mysqli_fetch_row($result)){ $cols=count($row); for($i=0;$i<$cols;$i++) $stu[$i]=$row[$i]; }else{ die("没有要修改的数据！"); } ?> <form id="editstu" name="editstu" method="post" action="act01.php?action=edit"> <input type="hidden" name="id" id="id" value="<?php echo $stu[5];?>"/> <table> <tr style="background: #666666;font-size: 30px ;text-align: center"> <td colspan="2">修改学生信息</td> </tr> <tr> <td>姓名</td> <td><input id="name" name="name" type="text" value="<?php echo $stu[0];?>"/></td> </tr> <tr> <td>性别</td> <td><input type="radio" name="sex" value="男" />男 <input type="radio" name="sex" value="女" />女 </td> </tr> <tr> <td>兴趣爱好</td> <td><input type="text" name="hobby" id="hobby" value="<?php echo $stu[2]?>"/></td> </tr> <tr> <td>家庭住址</td> <td><select id="address" name="address" > <option value ="">请选择您的居住区域</option> <option value ="上海">上海</option> <option value="广州">广州</option> <option value="北京">北京</option> </select></td> </tr> <tr> <td>备注</td> <td><textarea id="remark" name="remark" rows="5" cols="30"> </textarea></td> </tr> <tr> <td><input type="submit" value="修改"/> </td> </tr> </table> </form> </center> </body> </html>
<?php //操作数据的增删改查 // .连接数据库 $conn=mysqli_connect("localhost","root","123456","mydb",'3307') or die("数据库连接失败"); mysqli_query($conn,'set names utf8'); // .通过action的值进行对应操作 switch ($_GET['action']) { case 'add': { //增加操作 $name = $_POST['name']; $sex = $_POST['sex']; $hobby = $_POST['hobby']; $address = $_POST['address']; $remark = $_POST['remark']; //写sql语句 $sql = "INSERT INTO info (name,sex,hobby,address,remark) VALUES ('".$name."','".$sex."','".$hobby."','".$address."','".$remark."')"; $rw =mysqli_query($conn,$sql); if ($rw > 0) { echo "<script> //alert('增加成功'); window.location='ex01b.php'; //跳转 </script>"; } else { echo "<script> alert('增加失败'); window.history.back(); //返回上一页 </script>"; } break; } case "del": { // .获取表单信息 //通过id删除信息 $id = $_GET['id']; $sql = "DELETE FROM info WHERE id='{$id}'"; $rw =$conn->query($sql); if ($rw > 0) { echo "<script> alert('数据删除成功!'); window.location='ex01b.php'; //跳转 </script>"; } else { echo "<script> alert('数据删除失败!'); window.history.back(); //返回上一页 </script>"; } break; } case "edit" : { // .获取表单信息 //原id $id = $_POST['id']; //表单信息 //修改之后的信息 $name = $_POST['name']; $sex = $_POST['sex']; $hobby = $_POST['hobby']; $address = $_POST['address']; $remark = $_POST['remark']; $sql = "UPDATE info SET name='".$name."',sex='".$sex."',address='".$address."',remark='".$remark."',hobby='".$hobby."' WHERE id='".$id."'"; $result=mysqli_query($conn,$sql)or die("数据更新失败".mysqli_error($conn)); if ($result > 0) { echo "<script>alert('修改成功');window.location='ex01b.php'</script>"; } else { echo "<script>alert('修改失败');window.history.back()</script>"; } break; } }