I have a page where I have two columns one is Attribute name and Attribute Value. I have a button named Add Attribute Value which adds text boxes to the screen so that an Attribute Name can have multiple Attribute values. I have added the text boxes with a variable i in javascript.
I need to use the "i" variable and also access the text in the textbox using the name "'mytext'+i".
The code written is below:
<html>
<head><title>Add Attributes</title></head>
<body>
<script language="javascript">
var i = 1;
function changeIt()
{
my_div.innerHTML = my_div.innerHTML +"<br>             <input type='text' name='mytext'+ i><br>"
i++;
}
</script>
<form action= "" method = "POST">
<h1 align = "center"><u>Attribute Management</u></h1>
Attribute Name Attribute Value <br>
<br><input type="text" name="attname" >
<input type="text" name="attvalue">
<input type="button" value="Add Attribute Value" onClick="changeIt()">
<div id="my_div"></div>
<b> </b><br>
<br><br><input type="submit" name = "submit" value = "Add Attribute" >
<input type="submit" name = "submit1" value = "User Application" >
</form>
</body>
</html>
<?php
if(isset($_POST['submit'])){
$att_name = $_POST['attname'];
$query_string1 = "ALTER TABLE users ADD $att_name varchar(20)";
$query_string2 = "ALTER TABLE attributes ADD $att_name varchar(20)";
$part_string = "(";
for($x = 0;$x<= i;$x++){
$att_value= $_POST['mytext'.$x];
if($x = 0){
$part_string = $part_string.$att_value;
}
else{
$part_string = ",".$part_string.$att_value;
}
}
$part_string= $part_string.")";
$query_string3 = "INSERT INTO attributes ('$att_name') VALUES '$part_string'";
$connect = mysqli_connect("localhost","root", "","nets") or die("Couldn't connect to database");
/*$query1 = mysqli_query($connect,$query_string1);
$query2 = mysqli_query($connect,$query_string2);
$query3 = mysqli_query($connect,$query_string3);*/
}
if(isset($_POST['submit1'])){
header('Location: RegisteredUsers.php');
}
?>
Get an error of "i" is not defined and "Undefined index: mytext0". I have to collect all the attribute values and fire a query with all the values from the text box together.
Please suggest.
The error of "Undefined index: mytext0" is come due to no such input field is defined, because you have initialised the i with 1 so, just make it 0.
And also you have a issue in the html, which you are adding, just change your script block with following :
var i = 1;
function changeIt()
{
my_div.innerHTML = my_div.innerHTML +"<br>             <input type='text' name='mytext"+ i+"'><br>"
i++;
}<html>
<head><title>Add Attributes</title></head>
<body>
<form action= "" method = "POST">The error of "Undefined index: mytext0" is come due to no such input field is defined, because you have initialised the i with 1 so, just make it 0.
And also you have a issue in the html, which you are adding, just change your script block with following :
<h1 align = "center"><u>Attribute Management</u></h1>
Attribute Name Attribute Value <br>
<br><input type="text" name="attname" >
<input type="text" name="attvalue">
<input type="button" value="Add Attribute Value" onClick="changeIt()">
<div id="my_div"></div>
<b> </b><br>
<br><br><input type="submit" name = "submit" value = "Add Attribute" >
<input type="submit" name = "submit1" value = "User Application" >
</form>
</body>
</html></div>