Question

我正在为具有不同列的复选框值创建数据库。如何插入db？因为我已经将复选框值存储在不同的列名中，我的列名是allsubject，science，maths。

my questions are:
1.if user checks allsubject,the value is inserted, the other two column is going with null values. 
2.is this way of storing value is correct because among three check box user select any values, I want to clarify this?
3.More over I want to store the values  in this manner only

dbstructure：

**allsubject    science     maths**
   allsubject   science     maths
   allsubject   science     
                            maths
   allsubject  
Myform:
<form name="f1"  action="" method="post">
Student Name:<input type="text" name="sname" value=""/>
All Subject:<input type="checkbox" name="allsubject" value="allsubject"/>
Science<input type="checkbox" name="science" value="science"/>
Maths<input type="checkbox" name="maths" value="maths"/>
<input type="submit" name="submit" value="submit"/>
</form>

**myphp value is:**
    <?php
    mysql_connect('localhost','root','');
    mysql_select_db('checkbox');
    if(isset($_POST['submit'])=='submit')
    {
    $allsubject=$_POST['allsubject'];
    $science=$_POST['science'];
    $maths=$_POST['maths'];
    $sql=mysql_query("insert into studentinfo (allsubject,science,maths) values ('".$allsubject."','".$science."','".$maths."')");
    }
    ?>

Answer 1

if(isset($_POST['allsubject']){$allsubject=1;}  (OR VALUE YOU WANT)

我正在为不同列的复选框创建数据库。如何将值插入db？

1 个答案: