When I use $_POST in php , undefined index happened - php

Question

I am a PHP programmer, I am confused with the problem below, I am waiting for your guide .
Thanks so much!
There is the html code
<form action="" method="POST">
<div>
<strong>Release: *</strong> <input type="text" name="Release" value="<?php echo $rel; ?>" /><br/>
<strong>User Story ID: *</strong> <input type="text" name="User Story ID" value="<?php echo $id; ?>" /><br/>
<strong>Test Owner *</strong> <input type="text" name="Test Owner" value="<?php echo $owner; ?>" /><br/>
<strong>Date of TC Review *</strong> <input type="text" name="Date of TC Review" value="<?php echo $data; ?>" /><br/>
<strong>By Design </strong> <input type="text" name="By Design" value="<?php echo $design; ?>" /><br/>
<strong>By Review </strong> <input type="text" name="By Review" value="<?php echo $review; ?>" /><br/>
<strong>By Defect </strong> <input type="text" name="By Defect" value="<?php echo $defect; ?>" /><br/>
<p>* required</p>
<input type="submit" name="submit" value="Submit">
</div>
</form>
There is the php code
if (isset($_POST['submit']))
{
// get form data, making sure it is valid
$release = mysql_real_escape_string(htmlspecialchars($_POST['Release']));
// $ID = " abc";
echo $_POST['Release'];
echo $_POST['User Story ID'];
$ID = mysql_real_escape_string(htmlspecialchars($_POST["User Story ID"]));
$T_Owner = mysql_real_escape_string(htmlspecialchars($_POST['Test Owner']));
$data = mysql_real_escape_string(htmlspecialchars($_POST['Date of TC Review']));
$T_ByDesign= mysql_real_escape_string(htmlspecialchars($_POST['By Design']));
$T_ByReview= mysql_real_escape_string(htmlspecialchars($_POST['By Review']));
$T_ByDefect= mysql_real_escape_string(htmlspecialchars($_POST['By Defect']));
// check to make sure both fields are entered
if ($release == '' || $ID == ''||$T_Owner==''||$data=='')
{
// generate error message
$error = 'ERROR: Please fill in all required fields!';
// if either field is blank, display the form again
renderForm($release, $ID, $T_Owner, $data, $T_ByDesign, $T_ByReview, $T_ByDefect, $error);
}
else
{
// save the data to the database
mysql_query("INSERT Tests SET T_Release='$release', ID='$ID',TestOwner='$T_Owner',T_Date='$data',Test_ByDesign='$T_ByDesign',Test_ByReview='$T_ByReview',Test_ByDefect='$T_ByDefect'")
or die(mysql_error());
// once saved, redirect back to the view page
header("Location: view.php");
}
}
And the error information is below:
Notice: Undefined index: User Story ID in C:\xampp\htdocs\Test\new.php on line 47
abc
Notice: Undefined index: User Story ID in C:\xampp\htdocs\Test\new.php on line 55
Notice: Undefined index: User Story ID in C:\xampp\htdocs\Test\new.php on line 56
Notice: Undefined index: Test Owner in C:\xampp\htdocs\Test\new.php on line 57
Notice: Undefined index: Date of TC Review in C:\xampp\htdocs\Test\new.php on line 58
Notice: Undefined index: By Design in C:\xampp\htdocs\Test\new.php on line 59
Notice: Undefined index: By Review in C:\xampp\htdocs\Test\new.php on line 60
Notice: Undefined index: By Defect in C:\xampp\htdocs\Test\new.php on line 61

Answer 1

You are using invalid name for form input element.
Don't include space in form name.

Answer 2

1st edit your form:
<form action="" method="POST">
<div>
<strong>Release: *</strong> <input type="text" name="Release" value="<?php echo $rel; ?>" /><br/>
<strong>User Story ID: *</strong> <input type="text" name="User_Story_ID" value="<?php echo $id; ?>" /><br/>
<strong>Test Owner *</strong> <input type="text" name="Test_Owner" value="<?php echo $owner; ?>" /><br/>
<strong>Date of TC Review *</strong> <input type="text" name="Date_of_TC_Review" value="<?php echo $data; ?>" /><br/>
<strong>By Design </strong> <input type="text" name="By_Design" value="<?php echo $design; ?>" /><br/>
<strong>By Review </strong> <input type="text" name="By_Review" value="<?php echo $review; ?>" /><br/>
<strong>By Defect </strong> <input type="text" name="By_Defect" value="<?php echo $defect; ?>" /><br/>
<p>* required</p>
<input type="submit" name="submit" value="Submit">
</div>
don't use spaces on the form names, then you can get the post values like this:
if (isset($_POST['submit']))
{
// get form data, making sure it is valid
$release = mysql_real_escape_string(htmlspecialchars($_POST['Release']));
echo Print_r($_POST['Release']);
echo Print_r($_POST['User_Story_ID']);
$ID = $_POST["User_Story_ID"];
$T_Owner = $_POST['Test_Owner'];
$data = $_POST['Date_of_TC_Review'];
$T_ByDesign= $_POST['By_Design'];
$T_ByReview= $_POST['By_Review'];
$T_ByDefect= $_POST['By_Defect'];
// check to make sure both fields are entered
if ($release == '' || $ID == ''||$T_Owner==''||$data=='')
{
// generate error message
$error = 'ERROR: Please fill in all required fields!';
// if either field is blank, display the form again
renderForm($release, $ID, $T_Owner, $data, $T_ByDesign, $T_ByReview, $T_ByDefect, $error);
}
else
{
// save the data to the database
mysql_query("INSERT Tests SET T_Release='$release', ID='$ID',TestOwner='$T_Owner',T_Date='$data',Test_ByDesign='$T_ByDesign',Test_ByReview='$T_ByReview',Test_ByDefect='$T_ByDefect'")
or die(mysql_error());
// once saved, redirect back to the view page
header("Location: view.php");
}

Answer 3

First of all never use "By Design" kinds of coding in php or in any other programming instead of it you should use like this "By_Design" or use cameCaps(byDesign). What is $rel,$id and other stuffs in your html form, you didnot mentioned it. The main problem that is causing in your problem is the use of spaces in your forms and in php.Please don't use it.

Answer 4

I tried some test code:
<form action="" method="POST">
<input type="submit" name="what happened" value="here" />
</form>
<?php
print_r($_POST);
?>
And it seems PHP replaces all elements with spaces in their names to underscores. Thus you'd want to use $_POST['User_Story_ID'] instead of $_POST['User Story ID']. Etc.

Answer 5

You should be define you variable before use. Please check one more time.

Answer 6

Add form action "your_page.php"
Example : <form action="your_page.php" method="POST">
And remove space for form input element like:
echo $_POST['User Story ID'];
instead of this :
Example :
<strong>User Story ID: *</strong> <input type="text" name="UserStoryID" value="<?php echo $id; ?>" /><br/>
echo $_POST['UserStoryID']; or whatever you want to name it