Question

I have a session[‘password’]. I would like to get the session value and use it to validate against user’s input.

if(opw != $_session['password']){
      errors[errors.length] = "Sorry, password does not match.";
}

This is what I have been trying, however if I input this they do not read the session. And ignore this conditions. How do I actually insert session value into Javascript?

Answer 1

As the other answers have suggested, you have to embed your PHP session value into the javascript when the page is generator. But the others have forgotten one important thing – you have to generate VALID javascript or your entire script will get killed with a syntax error.

if (opw != <?php echo json_encode($_SESSION['password']) ?>) {

Note the call to json_encode – it’s not just enough to output the password string. You have to make sure that the password becomes a VALID javascript string, which json_encode ensures.