PHP $_POST not working? [duplicate]

Answer 1

Try get instead for test reasons

<form action="#?name=test" method="GET">
  <input type="text" name="firstname" />
  <input type="submit" name="submit" value="Submit" />
</form>

and

if(isset($_GET)){
    echo $_GET['name'] . '<br>';
    echo $_GET['firstname'];
}

Answer 2

A few thing you could do:

1. Make sure that the "action" attribute on your form leads to the correct destination.
2. Try using $_REQUEST[] instead of $_POST, see if there is any change.

3. [Optional] Try including both a 'name' and an 'id' attribute e.g.

   <input type="text" name="firstname" id="firstname">
   

4. If you are in a Linux environment, check that you have both Read/Write permissions to the file.

In addition, this link might also help.

EDIT:

You could also substitute

<code>if(isset($_POST['submit'])){</code>

with this:

<code>if($_SERVER['REQUEST_METHOD'] == "POST"){ </code>

This is always the best way of checking whether or not a form has been submitted

Answer 3

I also had this problem. The error was in the htaccess. If you have a rewrite rule that affects the action url, you will not able to read the POST variable.

To fix this adding, you have to add this rule to htaccess, at the beginning, to avoid to rewrite the url:

RewriteRule ^my_action.php - [PT]

Answer 4

Have you check your php.ini ?
I broken my post method once that I set post_max_size the same with upload_max_filesize.

I think that post_max_size must less than upload_max_filesize.
Tested with PHP 5.3.3 in RHEL 6.0

FYI:
$_POST in php 5.3.5 does not work
PHP POST not working

Answer 5

There is nothing wrong with your code. The problem is not visible form here.

1. Check if after the submit, the script is called at all.

2. Have a look at what is submitted: var_dump($_REQUEST)