Troubleshoot cache Problems

Assuming that the server environment only knows that running php code in php-fpm mode with Ngnix is also relatively simple die (& quot ;.................... & quot;); modify the code to discover cache problems! Step 1, step 2, step 3... Step N assumes that the server environment only knows how to run with Ngnix in php-fpm Mode
Php code is also relatively simple
Die ("....................");
Cache error detected by modifying code!
How to troubleshoot changes
Step 1, step 2, step 3... Step N

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Assume that the server environment only knows that Ngnix is used to run in php-fpm mode.
Php code is also relatively simple
Die ("....................");
Cache error detected by modifying code!
How to troubleshoot changes
Step 1, step 2, step 3... Step N