Question

我从控制台（在chrome中）收到错误，说“未捕获的ReferenceError：未定义插入”。尽我所能努力尝试找到问题我仍然不知道为什么会这样。我的所有语法都没有错误。有谁可以指出这个问题？下面是与此问题相关的代码：

以下代码是我的表单i，用户可以输入详细信息以向我的应用添加联系人：

<script src="ajax_framework.js" type="text/javascript"></script>

<?php   $addContact = $_GET['addContact'];

//form which users can use to enter the details of a new contact to add to the database.
echo "Add A Contact:";
echo "<FORM action='javascript:insert()' method='get'>";
echo "<table>";
echo "<tr>";
echo "<td>First Name:</td><td><input id='newFname' name='newFname' type='text' size'20'></input></td>";
echo "</tr>";
echo "<tr>";
echo "<td>Last Name:</td><td><input id='newLname' name='newLname' type='text' size'20'></input></td>";
echo "</tr>";
echo "<tr>";
echo "<td>Phone Number:</td><td><input id='newPhone' name='newPhone' type='text' size'12'></input></td>";
echo "</tr>";
echo "<td>Email Address:</td><td><input id='newEmail' name='newEmail' type='text' size'30'></input></td>";
echo "</tr>";
echo "<tr>";
echo "<td>Postal Address:</td><td><input id='newAddress' name='newAddress' type='text' size'65'></input></td>";
echo "</tr>";
echo "<td>Group:</td><td> <input id='group' value='Ungrouped' type='radio' name='group'/>No Group <input id='group' value='Friends' type='radio' name='group'/>Friend";
echo "<input id='group' value='Colleagues' type='radio' name='group'/>Colleagues <input id='group' value='Family' type='radio' name='group'/>Family";
echo "</table>";
//submit button that submits the contact information to an ajax function.
echo "<input type='submit' name='Submit' value='Add Contact'/>";
echo "</FORM>";

?>

此代码使用insert语句将信息发送到数据库：

<!-- Include Database connections info. -->
<?php include('config.php'); ?>

<?php

//If the values are set (i.e the txt fields/radio button are filled in then run the sql insert statement to add the contact.
if(isset($_GET['newFname']) && isset($_GET['newLname']) && isset($_GET['newPhone']) && isset($_GET['newEmail']) && isset($_GET['newAddress']) && isset($_GET['group'])) 
{

    $newFname = $_GET["newFname"] ;
    $newLname = $_GET["newLname"] ;
    $newPhone = $_GET["newPhone"] ;
    $newEmail = $_GET["newEmail"] ;
    $newAddress = $_GET["newAddress"] ;
    $group = $_GET["group"] ;

    //SQL insert statement used to add the user entered data to the database table.
    $insertContact_sql = "INSERT INTO `test`.`contacts` (`newFname`, `newLname`, `newPhone`, `newEmail`, `newAddress`, `group`) VALUES ('{$newFname}' , '{$newLname}' , '{$newPhone}' , '{$newEmail}' , '{$newAddress}' , '{$group}')";
    $insertContact= mysql_query($insertContact_sql) or die(mysql_error());

} 

//else if the fields do not contain data then display this error message.
else 
{ 
    echo 'Error! Please fill all fileds!';
}

?>

以下是我的AJAX功能：

function createObject() 
{
    var request_type;
    var browser = navigator.appName;
    if(browser == "Microsoft Internet Explorer")
    {
        request_type = new ActiveXObject("Microsoft.XMLHTTP");
    }

    else    
    {
        request_type = new XMLHttpRequest();
    }

    return request_type;
}

var http = createObject();


//value solve an Internet Explorer cache issue
var nocache = 0;
function insert() 
{
    // Optional: Show a waiting message in the layer with ID login_response
    document.getElementById('content02').innerHTML = "Just a second..."
    // Required: verify that all fileds is not empty. Use encodeURI() to solve some issues about character encoding.
    var newFname= encodeURI(document.getElementById('newFname').value);
    var newLname = encodeURI(document.getElementById('newLname').value);
    var newPhone = encodeURI(document.getElementById('newPhone').value);
    var newEmail = encodeURI(document.getElementById('newEmail').value);
    var newAddress = encodeURI(document.getElementById('newAddress').value);
    var group = encodeURI(document.getElementById('group').value);

    // Set te random number to add to URL request
    nocache = Math.random();
    // Pass the login variables like URL variable
    http.open('get', 'newContact.php?newFname='+newFname+'&newLname=' +newLname+'&newPhone=' +newPhone+'&newEmail=' +newEmail+'&newAddress=' +newAddress+'&group=' +group+'&nocache = '+nocache);
    http.onreadystatechange = showGroup;
    http.send(null);
}

function showGroup(str)
    {
    document.getElementById("content01").innerHTML="";
    if (str=="")
    {
    document.getElementById("content01").innerHTML="";
    return;
    } 
    if (window.XMLHttpRequest)
    {// code for IE7+, Firefox, Chrome, Opera, Safari
    xmlhttp=new XMLHttpRequest();
    }
    else
    {// code for IE6, IE5
    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
    xmlhttp.onreadystatechange=function()
    {
    if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    document.getElementById("content01").innerHTML=xmlhttp.responseText;
    document.getElementById("content02").innerHTML = "";
    }
    }
    xmlhttp.open("GET","getGroup.php?contactGroup="+str,true);
    xmlhttp.send();
    }

未捕获的ReferenceError：未定义insert

0 个答案: