An example of PHP lottery applet code

/**
 * php lottery function
 *
 * @param integer $first starting number
 * @param integer $last ending number
 * @param integer $total number of winners
 *
 * @return string
 *
*/
function isWinner($first, $last, $total)
{
 $winner = array();
 for ($ i=0;;$i++)
 {
 $number = mt_rand($first, $last);
 if (!in_array($number, $winner))
 $winner[] = $number; // if in array If there is no such number, add it to the array
 if (count($winner) == $total) break;
 }
 return implode(' ', $winner);
}
/ / for test
echo isWinner(1, 100, 5);
?>

It is very simple, it is only for practice and research by beginners.