php优化代码，减少代码输出，在这里做一下笔记

代码，减少代码输出，在这里做一下笔记"/>

php优化代码，减少代码输出，在这里做一下笔记

比如这段代码

if (!empty($order_status) || $order_status == 0) {if ($order_status == 100) {$where[] = [];} elseif ($order_status == 0) {$where[] = ['order_status', $order_status];} elseif ($order_status == 1) {$where[] = ['order_status', $order_status];} elseif ($order_status == 2) {$where[] = ['order_status', $order_status];} elseif ($order_status == 3) {$where[] = ['order_status', $order_status];} elseif ($order_status == 4) {$where[] = ['order_status', $order_status];} elseif ($order_status == 5) {$where[] = ['order_status', $order_status];} elseif ($order_status == 6) {$where[] = ['order_status', $order_status];} elseif ($order_status == 7) {$where[] = ['order_status', $order_status];} elseif ($order_status == 8) {$where[] = ['order_status', $order_status];} elseif ($order_status == 9) {$where[] = ['order_status', $order_status];} elseif ($order_status == 10) {$where[] = ['order_status', $order_status];} elseif ($order_status == 11) {$where[] = ['order_status', $order_status];} elseif ($order_status == 12) {$where[] = ['order_status', $order_status];}
}

虽然我不知道上个程序员为什么要这样写？最后优化后:
可以使用 in_array 函数来简化这段代码，将需要匹配的状态值放入一个数组中，然后检查 $order_status 是否在该数组中。这样可以减少冗长的条件分支。以下是优化后的代码：

$validStatus = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 100];if (!empty($order_status) || $order_status == 0) {if (in_array($order_status, $validStatus)) {$where[] = ['order_status', $order_status];}
}

这种方式更简洁，易于维护，并且可以轻松扩展支持的订单状态，而不必添加新的条件分支。