PHP: Get textbox value from HTML input tag

Question

I got a very simple problem and I've searched for it for hours. But I just don't fix my error... I try to get the value of my textbox (I know, there are lots of posts but no one of them could've helped me).

I got this HTML code:

<form action="" method="post">
    <input type="text" id="address" name="address" placeholder="Enter your zip code" style="width:250px;" />
    <input type="submit" id="submit" value="Submit" />
</form>

And this is PHP code #1 I tried:

<?php
    $textboxValue = $_POST['address'];
    echo $textboxValue;
?>

This doesn't work and I don't know why. After trying this, I found another code:

<?php
    if(isset($_POST['submit'])){
        $textboxValue = $_POST['address'];
        echo $textboxValue;
    }
?>

This doesn't seem to work. Like the other one.

Is there an error or why is the $textboxValue not displayed when I call it with echo?

It may happen if you are trying to access post variables in another file. mention your form action file and a file where you written your above mentioned code — Yatin Trivedi
– Yatin Trivedi, Commented Dec 3, 2013 at 14:41
you are not provided name for submit button sset name as submit — Pranav C Balan
– Pranav C Balan, Commented Dec 3, 2013 at 14:41
It should submit to itself. So I thought action="" will do this? — Tyler
– Tyler, Commented Dec 3, 2013 at 14:42
@Pranavc Do not do this unless you're keen on HTML injection. — deceze
– deceze ♦, Commented Dec 3, 2013 at 15:03

Maarkoize · Accepted Answer · 2013-12-03 14:41:11Z

5

Please give the form an action!

And you have to name the submit button submit:

<input type="submit" name="submit" id="submit" value="Submit" />

Otherwise isset() will return false.

answered Dec 3, 2013 at 14:41

Maarkoize

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3 Comments

Tyler Over a year ago

I now got action="<?php echo $_SERVER['PHP_SELF']; ?>" and <input type="submit" id="submit" name="submit" value="Submit" /> It still doesn't work :/

Tyler Over a year ago

Yes it is... That's why I think it's strange

Maarkoize Over a year ago

Hm..what's your file named? $_SERVER['PHP_SELF'] should work, but please try it with the action="yourfile.php"

Tyler · Accepted Answer · 2013-12-03 15:47:36Z

-1

I found the error. In my file I had a return = false; so he couldn't execute the $_POST method. But thanks for all your help :)

answered Dec 3, 2013 at 15:47

Tyler

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2 Comments

Maarkoize Over a year ago

I can't see any return in your code above. That's why you always should show the whole code.

Maarkoize Over a year ago

Ok..but the solution of the code above is the answer above, because the name="" was missing. So accept the answer, please so that others not search for an return = false which doesn't exist

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