php - sql php通过if语句插入到表中

Question

简单地说我的代码似乎没有工作可能变量工作并回显它只是插入的代码我做错了没有错误只是没有插入到表中..这个想法是它插入到表中并替换数据已在所选 id 中

if(($_REQUEST['questionbox']=="" )||($_REQUEST['boxA']=="")|| ($_REQUEST['boxB']=="")|| ($_REQUEST['boxC']=="")|| ($_REQUEST['boxD']=="")|| ($_REQUEST['correctbox']==""))
{
echo "must enter data";
}else{
 $sql2 = "INSERT INTO `tblas`(`id`, `question`, `A`, `B`, `C`, `D`, `correct`) VALUES ([".$idbox."],[".$questionbox."],[".$boxA."],[".$boxB."],[".$boxC."],[".$boxD."],[".$correctbox."])";
$editquery= mysql_query($sql2, $db);
echo $editquery;

Answer 1

试试这个查询而不是插入查询

if(($_REQUEST['questionbox']=="" )||($_REQUEST['boxA']=="")|| ($_REQUEST['boxB']=="")|| ($_REQUEST['boxC']=="")|| ($_REQUEST['boxD']=="")|| ($_REQUEST['correctbox']==""))
{   
    echo "must enter data";
}else{
    $sql2 = "UPDATE tblas SET id='".$idbox."', question = '".$questionbox."', A = '".$boxA."', B = '".$boxB."' ,C = '".$boxC."', D= '".$boxD."' , correct= '".$correctbox."'";
}

echo $editquery;