Question

Hello, I have a short question. I would like to reset a variable that is going to be posted:

I will post a variable that comes from an input field. When this variable $_POST['a']; is empty, I would like to fill it with new content.

The scheme is like that:

empty variable will be posted -> php recognizes that it is empty -> giving it new content -> echoing out new content.

This is just simple but it doesnt work for me.

So here is what I have:

$a = $_POST['a'];

if( empty($a){
    $errors['a'][]="text";
    $a =="new content";
}

So if there is someone whould could tell me whats being wrong with this, I really would appreciate. Thanks a lot.

Answer 1

Three things:

$a = isset($_POST['a']) ? $_POST['a'] : ''; // always check if array index exists

if( empty($a)) { // one more bracket
    $errors['a'][]="text";
    $a ="new content"; // only one '='
}