我已经尝试了很多,但是我无法找出该函数将两个值保存到数据库中出了什么问题。另一个功能保存一个值一直很好。这里的表现很奇怪。有时发送“父”值,有时停止发送,但从不发送味精值。这是功能。它对于一个输入(即父级)工作正常,但问题从添加第二个输入开始。

<script>
function ADDLISITEM(form)
{
var parent = form.txtInput.value;
    var msg    = form.msgInput.value;
    form.txtInput.value = "";
    form.msgInput.value = "";
    var url = "send_mysql.php"
var request = null;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
request=new XMLHttpRequest();
 }
else
{// code for IE6, IE5
request=new ActiveXObject("Microsoft.XMLHTTP");
}
request.open("POST", url, true);
request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
request.setRequestHeader("Connection", "close");
request.onreadystatechange = function(){
    if (request.readyState == 4) {
        if (request.status == 200) {
            //alert('POST');
    } else {
        alert(request.status); // fails here
    }
    }
}
request.send("parent=" + encodeURIComponent(parent).replace(/%20/g, '+')+"&msg=" +
    encodeURIComponent(msg).replace(/%20/g, '+'));
}
</script>


这是send.php


      $ username =“ babar”;
      $ password =“ k4541616”;
      $ hostname =“本地主机”;
      $ dbh = mysql_connect($ hostname,$ username,$ password)或die(“无法连接
      到MySQL”);
      $ selected = mysql_select_db(“ spec”,$ dbh)或die(“无法选择first_test”);

  //die(var_export($_POST,TRUE));

  $parent = $_POST['parent'];
  $msg = $_POST['msg'];
  $name   = 'Akhtar Nutt';
  //$parent2 = json_decode($parent);
  $msg_ID = '2q7b2sfwwe';
  //$msg2    = json_decode($msg);
  $query  =  "INSERT INTO msg2_Qualities(id,name,msg,msg_id,parent) VALUES
  ('','$name','$msg','$msg_ID','$parent')";
    if(!mysql_query($query, $dbh))
        {die('error:' .mysql_error())
      ;}


?>

最佳答案

改变

request.send("parent=" + encodeURIComponent(parent).replace(/%20/g, '+')+"msg=" + encodeURIComponent(msg).replace(/%20/g, '+'));


至:

request.send("parent=" + encodeURIComponent(parent).replace(/%20/g, '+')+"&msg=" + encodeURIComponent(msg).replace(/%20/g, '+'));


您在查询字符串中缺少参数分隔符& ...

您可能还想避免使用$_REQUEST中的值,因为它们不可靠。如果您的脚本需要来自POST的数据,请从$_POST检索这些值。

关于php - json函数将数据保存到数据库中时出错,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/4315474/

10-11 03:15
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