Usage of the phpob_start () cache function

Usage of the phpob_start () cache function

This article introduces the usage of the ob_start () function used for cache control in php. For more information, see. In php, the ob_start () function is used to open the buffer. for example, if there is output before the header () function, there will be "Header had all ready send by" errors in carriage return, space, or line feed. In this case, you can use ob_start () to open the data block of the php code in the buffer zone and echo () to output the data in the buffer zone rather than immediately. For methods to open the buffer in php, there are four methods: 1, used before header () 2. the phpinfo () function can obtain client and server information and save client information in a buffer zone. 3. static page Technology 4. output code