laravel implemented using a distributed lock redis - may be used to prevent duplicate form submission

Manage cross-process locks:

Here are just a personal understanding, if in doubt please refer to the official documentation   https://xueyuanjun.com/post/19506.html#bkmrk-%E5%8E%9F%E5%AD%90%E9%94%81

. $ key = 'Test:' $ UID; 
// in the controller, to lock the key 10 seconds, if not actively released, after 10 seconds, the server will automatically release 
$ lock = Cache :: lock ($ key , 10); 
$ Result = $ lock -> GET (); 
IF ($ Result) { 
    // simulate complex calculations, then the code is not executed, and the next request coming 
    SLEEP (2); 
    echo 'performed a form submission! '; 
    // initiative to release the lock 
    Cache :: Lock ($ Key) -> forceRelease (); 
} 
echo' Please do not repeat frequently submit the form ';