How to paginate query results in Laravel

SanctumtokenauthrequiresexplicitconfigurationforAPIroutes:useauth:sanctummiddleware,configurethesanctumguardinauth.php,handleCSRFforSPAs,andmanuallymanagetokenrevocationandcleanup.

Which cache driver to choose: file or redis? Laravel uses the file driver by default, which saves trouble during development, but it is basically unusable after going online - it relies on file system locking and serialization, and is prone to getting stuck and read-write conflicts under high concurrency. Cache::get() occasionally returns null not because of expiration, but because of read failure. Redis is the safest production choice: atomic operations, TTL support, fast memory, and automatic eviction. If the Redis service is not running, Laravel will not report an error, but will silently fallback to the array (memory driver). The result is that the cache "seems to be effective", but it will be lost after restarting. It took a long time to check online to find that Redis was down. make sure

The auth middleware in Laravel does not intercept non-login requests. The fundamental reason is that the routing is defined in api.php instead of web.php, which leads to the use of API guards instead of Web guards, and does not trigger redirects; it is necessary to confirm the routing location, guard configuration and middleware order.

Global scope vs. local scope: When to use which global scope (GlobalScope) is automatically applied to all queries, suitable for unified rules across the entire site, such as soft deletion or tenant isolation; local scope (scope* method) must be called explicitly, suitable for common condition combinations for on-demand reuse, such as scopeActive() or scopePublished(). Misuse of global scope can lead to unintentional filtering - such as missing "archived" records on the backend admin page without being able to find out why. Practical suggestions: Prioritize writing local scope: it is more controllable, testable, and easy to debug. Only consider the global scope for logic that truly "should never be bypassed" (and make sure it supports withoutGl

The main reason why Telescope does not take effect is that the service provider registration sequence is wrong, middleware interception or improper environment configuration; SQL logs need to be explicitly enabled with DB::enableQueryLog(); slow query analysis needs to be combined with EXPLAIN; the log channel must include telescope and clear the cache.

Laravel will not automatically register the artisan command, so you need to manually add the class name to the $commands array in Kernel.php; use argument() for parameters and option() for options; the model must use the complete namespace; the queue task must use dispatch(); the output should use methods such as info() instead of echo.

Eloquent is safe, but DB::raw(), etc. are escape channels and need to be whitelisted to verify field names/sorting directions; Blade escapes are prone to failure when {!!!!}, Vue interpolation, and JSON output; CSRF is often bypassed due to middleware mismatching in API routing; .env needs to be explicitly prohibited from access by the web server.

Why doesn't Fortify that comes with Laravel use 2FA directly out of the box? Laravel's officially recommended authentication solution, Fortify, does support two-step verification, but it is not enabled by default - it only registers relevant routes and database migrations. The enableTwoFactorAuthentication() method requires you to call it manually, and the user model must implement the TwoFactorAuthenticatable interface. Many people think that everything is fine after running phpartisanfortify:install. As a result, they cannot see the QR code or backup code when logging in. Common errors: Calltoun