Welcome toVigges Developer Community-Open, Learning,Share
Ask a Question
Welcome To Ask or Share your Answers For Others

Categories

php中header函数前面不能有输出语句

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

php中header函数前面不能有输出语句

在我的印象里，设置header函数前面不能有任何echo print 等输出语句，否则会报错
image.png
为什么我运行这段代码，正常运行？
image.png
当我在代码前面关闭缓冲，才会报错
image.png
没搞懂的是我都没有ob_start(),为什么一开始不会报错？现在php默认自动开启缓冲？求大佬解答，感谢


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 Answer

0 votes
by (71.8m points)

https://www.php.net/manual/zh...

如果开启了 output_buffering 则会等到buffer写满之后才会向浏览器发送


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 Vigges Developer Community for programmer and developer-Open, Learning and Share

Just Browsing Browsing

2.1m questions

2.1m answers

63 comments

56.7k users

Most popular tags

Snow Theme by Q2A Market
Powered by Question2Answer
...