PHP POST METHOD Undefined Index

Question

I am trying to implement the creating topic part in forum

Why I can't use the another php file, say b.php to get data that sent from a.php?

$topic=$_POST['title'];
$detail=$_POST['content'];
$name=$_POST['username'];

Errors show message that undefined index at these 3 inputs.

Post source from b.php and a.php. Your question is far too vague. Show us how the form is submitted. — Michael B
– Michael B, Commented Jul 28, 2011 at 7:54
What do you mean you can't use? If the code above is your b.php I don't see any reason why you can't make such post on it. <form action='b.php' method='post'> — Nemoden
– Nemoden, Commented Jul 28, 2011 at 7:56

hsz · Accepted Answer · 2011-07-28 07:54:24Z

3

Because you are calling this script without sending POST data.

Use it in following way:

$topic  = empty($_POST['title'])  ? null : $_POST['title'];
$detail = empty($_POST['detail']) ? null : $_POST['detail'];
$name   = empty($_POST['name'])   ? null : $_POST['name'];

It will avoid errors and if you just request script without POSTing, variables will contain null values

answered Jul 28, 2011 at 7:54

hsz

153k63 gold badges268 silver badges320 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Larry Over a year ago

But the problem is when I submit these information, there is no even u-date to databse and my b.php cannot help me add the topic since they check the input field is null.

Larry Over a year ago

used, but not sure why the array is empty even I have submit the information at a.php

Collectives™ on Stack Overflow

PHP POST METHOD Undefined Index

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related