2014-05-10 63 views
-1

我有這樣的文件結構。PHP的AJAX - 沒有得到價值表格提交

當我提出,我得到了一個錯誤:

Notice: Undefined index: course1 in C:\wamp\www\mysite\formprocess2.php on line 7 

Notice: Undefined index: course2 in C:\wamp\www\mysite\formprocess2.php on line 8 

Notice: Undefined index: course3 in C:\wamp\www\mysite\formprocess2.php on line 9 

我不明白爲什麼會這樣。

這裏是我的代碼:

的index.php:

<html> 
<head> 
<script> 
function showUser(str) { 
    if (str=="") { 
    document.getElementById("course").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("course").innerHTML=xmlhttp.responseText; 
    } 
    } 
    xmlhttp.open("GET","getcourse2.php?q="+str,true); 
    xmlhttp.send(); 
} 
</script> 

</head> 
<body> 
<table width="850" border="1" align="center" > 
<form action="formprocess2.php" method="POST" name="applicationform" id="applicationform"> 
<tr><td> <p>Application Form</p></td></tr> 
<tr><td colspan="3">Name of the College where admission is sought :</td> 
<td colspan="3"><select name="college" id="college" onchange="showUser(this.value)"> 
<option value="">----Select College----</option> 
<?php 
include("db_connect.php"); 
$select=mysql_query("select * from college"); 
while($data=mysql_fetch_array($select)) 
{ 
?> 
<option value="<?php echo $data['ID'];?>"><?php echo $data['collegename'];?></option> 
<?php 
} 
?> 
</select></td> 
    </tr> 
    <tr> 
    <td colspan="3">Name of the Course applied for : </td> 
    <td colspan="3" id="course"></td> 
    </tr> 
    <tr> 
    <td colspan="3"><input type="submit" name="submit" id="submit" value="Submit"></td> 
    <td colspan="3">&nbsp;</td> 
    </tr> 
    </form> 
</table> 
</body> 
</head> 
</html> 

getcourse2.php:

<?php include('db_connect.php'); ?> 
<?php 
for ($x=1; $x<4; $x++) { 
    $course="course"."$x"; 
    ?> 
<select name="<?php echo $course?>"id="<?php echo $course?>"> 
<?php 
$q = intval($_GET['q']); 
$sql = "SELECT course.coursename FROM course 
INNER JOIN college 
ON college.ID=course.collegeID WHERE college.ID ='$q'"; 
$result = mysql_query($sql); 
while($row = mysql_fetch_array($result)) { 
?> 
<option value="<?php echo $row['coursename'];?>"><?php echo $row['coursename'];?></option> 
<?php 
} 
?> 
</select> 
<?php 
}?> 

formprocess2.php:

<?php 
echo $college= $_POST["college"]; 
echo $course1= $_GET["course1"]; 
echo $course2=$_GET["course2"]; 
echo $course3= $_GET["course3"]; 
?> 

發生了什麼事錯在這裏,我該如何修復它?

回答

1

您試圖在$_GET陣列獲取數據,但你的形式方法是POST,所以你必須要做到這一點:

<?php 



echo $college= $_POST["college"]; 
echo $course1= $_POST["course1"]; 
echo $course2=$_POST["course2"]; 
echo $course3= $_POST["course3"]; 

?> 
+0

我花了第二弄清楚究竟是怎麼回事,他的代碼,這個答案是正確的...雖然html中還有一個額外的''標籤。 –

+0

是的,它的工作,當然。所有字段的POST方法。所以應該有一個$ _POST數組。 OP,請在之前刪除,並將我的答案標記爲解決方案,如果這對您有幫助。謝謝。 –

+0

不能正常工作....請幫助 –