One of the discussions about output buffering (Output buffering)_PHP tutorial

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##Title About Output Buffering Discussion
##Compilation Diego Lynn @ 林国国
##Original work By Zeev Suraski
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Discussion about output buffering (Output buffering)
Directory
HTTP Header
Why use Output Buffering technology
Output How Buffering works
Basic usage
Advanced usage
Make things simpler
Haha, I succeeded
Personally, I think Output buffering is a relatively pure PHP 4.0 feature. Although conceptually quite simple, output buffering is extremely powerful and makes it easier for developers to develop advanced and efficient programs.
This article will introduce HTTP headers, how output buffering can help you deal with HTTP headers, and introduce some advanced uses of output buffering.
HTTP Header[HTTP header]
For each request established using the HTTP protocol, the response generated by the web server usually consists of two parts