php 在使用if判断的时候 如果是多个逻辑或(||)条件 有没有简写的方法
比如
<code> $order['status'] == 9 || $order['status'] == 10 || $order['status'] == 11 </code>
类似这种的话,如果两三个还勉强可以接受,但是如果还有 3 个以上的条件我就无法接受这种写法了。
后来使用了 in_array()的方法相对简短一点了。
想来请教下 php 中 有没有比 in_array()再好点的写法了。谢谢
回复内容:
比如
<code> $order['status'] == 9 || $order['status'] == 10 || $order['status'] == 11 </code>
类似这种的话,如果两三个还勉强可以接受,但是如果还有 3 个以上的条件我就无法接受这种写法了。
后来使用了 in_array()的方法相对简短一点了。
想来请教下 php 中 有没有比 in_array()再好点的写法了。谢谢
酱?
<code>php</code><code>switch($order['status']){ case FINISHED: case PENDING: case PROCESSING: //logic break; default: break; } </code>
难道不是 in_array($order['status'], [9, 10, 11])
像你这个例子, 改成switch就行了,简单直观还合理;
如果条件太多无可避免的情况,即只能用if,就算用别的也感觉别扭不对劲的时候, 建议换一种写法:
<code>if ($order['status'] == 9 || $order['status'] == 10 || $order['status'] == 11) { } </code>
我是花括号部另起一行党, 但在这种情况下,也可以
<code>if ($order['status'] == 9 || $order['status'] == 10 || $order['status'] == 11) { } </code>
另外建议把字面量常量放在左边。
如果if里的判断条件特别特别长(我见过有些分支需要判断三四个变量,||和&&用了七八个),建议把判断条件写成单独的函数

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