Fatal error: Uncaught TypeError: array_push(): Argument #1 ($array) must be of type array, null given in /homepages/12/d660424460/htdocs/beautyofmath/random.php:13
Stack trace:
#0 /homepages/12/d660424460/htdocs/beautyofmath/random.php(13): array_push(NULL, Array)
#1 {main}
thrown in /homepages/12/d660424460/htdocs/beautyofmath/random.php on line 13