php lottery applet
Release： 2016-07-25 09:01:32
Original
1300 people have browsed it
This lottery applet can also be used in actual testing environments. For example, when querying test data under the in condition, you need to query 5 random IDs, and then use ab to perform stress testing.
- /**
- * "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[] = $number; // If the number is not in the array, replace it Add to array
- if (count($winner) == $total) break;
- }
- return implode(' ', $winner);
- }
- // for test
- echo isWinner(1, 100, 5);
- ?>
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