Php basic cache FAQs

Php basic cache questions: PHPcode & lt ;? Phpob_start (); echo11 ;? & Gt; output of the above code execution result: 11 ask: ob_start (); didn't all the subsequent outputs go into the cache? why shouldn't there be any outputs? why are there outputs? don't you understand? thank you! ------ Solution ------------------ php basic cache questions

PHP code

Output of the above code execution result: 11

Ask: ob_start (); isn't all the subsequent output in the cache? why is there no output? why is there any output here? thank you!

------ Solution --------------------
When the php program ends, the cache is closed and the cached content is released.