Question

im not very experienced in php. The problem i’m facing is:

print "post: {$_POST['var']} session: {$_SESSION['var']}\n";

let’s say this prints 2 equal outputs.

then

if($_POST['var'] == $_SESSION['var']){
...
}

never evaluates as true. What should I do to fix it?

Answer 1

Try the following:

if (trim($_POST['var']) == trim($_SESSION['var'])) {
  // ...
}

You could also check the contents of the $_SESSION['var'] and $_POST['var'] using var_dump and see if they match:

var_dump($_POST['var']);
var_dump($_SESSION['var']);