Description:
------------
PHP 8.0.0-dev (cli) (built: Nov 23 2020 00:27:07) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.0-dev, Copyright (c) Zend Technologies
    with Zend OPcache v8.0.0-dev, Copyright (c), by Zend Technologies

Build Configuration: https://github.com/shivammathur/php-builder/blob/master/.github/scripts/8.0

Script: https://3v4l.org/kkRIE
  curl -o test.php -H Accept:text/plain -sL https://3v4l.org/kkRIE
  for ((i=1;i<=5;i++)); 
  do 
     echo $i
     php test.php
     sleep 1
  done

Above snippet will run the script "https://3v4l.org/kkRIE" multiple times and when opcache kicks in "(int) (63/ 120 * 100)" starts evaluating to 0.

This works fine with opcache disabled on PHP 8.0 and with or without opcache on PHP 7.4

Test workflow - https://github.com/shivammathur/test-setup-php/runs/1441325553?check_suite_focus=true#step:6:33



Test script:
---------------
<?php

$firstRowColumns  = 63;

var_dump([
    $firstRowColumns,
    ($firstRowColumns / 120),
    ($firstRowColumns / 120 * 100),
    (int) ($firstRowColumns / 120 * 100),
]);

Expected result:
----------------
(int) (63/ 120 * 100) should evaluate to 52 with opcache enabled on PHP 8.0

Actual result:
--------------
(int) (63/ 120 * 100) evaluates to 0 with opcache enabled on PHP 8.0