I believe That is the common principle of encryption data at front end, for a asymmetric encryption you should encrypt with a public key using eg. rs256 (using a js library) t...
<? This is a short tag and is a bad practice. Instead, you should always use this <?php. So, after all, considering read about PSRs.
Just on daily work running, guys did you use swoole in production?
The sql record wasn't created into database or just the filename into that field?
Can you elaborate more your question? I couldn't understand
Do you have anything at error log files?