The OB cache for PHP

(1) OB cache response Process

If the OB cache is open, the echo data is first placed in the OB cache. If it is header information, put it directly in the program cache. When the page executes to the end, the data of the OB cache is placed in the program cache and returned to the browser in turn.

(3), how to open the OB cache method

1. Add output_buffering=4096 to the php.ini file in the configuration file

Note:the OB cache is turned on by default after php5.3

2, add a sentence in the procedure Ob_start (); Turn on the OB cache

(4), several important OB functions:

Ob_get_contents (); Get OB cache data

Ob_clean (); Empties data from OB cache

Ob_end_clean (); Empties the OB cache data and closes the cache

Ob_flush (); Refresh (cut) The data in the OB cache to the program cache

Ob_end_flush (); Flushes (cuts) the OB cache data to the program cache and closes the OB cache

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