在Firefox上禁用JavaScript意味着我的按钮不起作用，是否有办法编写按钮以便它们可以工作？

Question

So I have written a basic page which has buttons:

<button type="button" onclick="minus()"> </button>

with the script:

function minus() {
  if (<?php echo $number ?> > 1){
  var num = <?php echo $number; ?> - 1;
  var number=num;
  window.location.href = "page2.php?w1=" + number;}
};

So this just subtracts 1 off of a PHP variable and it works perfectly well in Chrome, IE and Safari, but in Firefox it doesn't work at all. Is this a security thing is this code particularly insecure?.

Is there any way in which I can write a button to change this PHP variable without using JavaScript as to make it work on Chrome, IE, Safari + Firefox?

Many thanks

Answer 1

PHP is a server-side language - JavaScript a client-side language; PHP is executed before Javascript, so by the time your Javascript function is initiated the PHP code is already gone.

Take a look at this: Using PHP in javascript's IF Statement.

It might help!