Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
430 views
in Technique[技术] by (71.8m points)

php - Using short circuiting to get first non-null variable

What's the equivalent of the following (based in JS style) in PHP:

echo $post['story'] || $post['message'] || $post['name'];

So if story exists then post that; or if message exist post that, etc...

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

It would be (PHP 5.3+):

echo $post['story'] ?: $post['message'] ?: $post['name'];

And for PHP 7:

echo $post['story'] ?? $post['message'] ?? $post['name'];

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...