The leader gave me a task, asking me to collaborate with IOS and Android to create an app 4.0 version for the mobile version of the platform. I had never written an interface before, so it was a bit confusing to get it.
Later, I asked my seniors for advice and slowly wrote a little bit. I basically mastered the handover rules in one day. The most difficult part was the debugging part, because it was also secondary development, and I was not very familiar with some functions before. So there was a lot of stumbling along the way, but after leaving, I finally got through it and got online. This time Redis and Memcache are mainly used. Although I have seen Redis, actually using it is another matter. Let me give you a few examples:
1. It is the problem of passing values in Redis,
$redis = new Redis();
$redis->set ("test".$user['id'],$packet_token);
But when fetching it
$redid = $redis->get("test".$user['id']);
The reason why 到 cannot be worth the value is that Redis does not set an expiration time. When assigning, add $ redis-& gt; set2 ("user". );2. Redis queue blocking situation When testing the app, redis has various blocking and various error logs. For simple blocking, just click the queue (execute the script): #!/bin/bashout
supervisorctl restart all
surprise surprise attended then the
then bug surprise, then surprise field then THE THE SET PLACE THE REASON AS THE TUTT PLACE BEEN THE TURN BEWARE EXCEPTION time then been done then been
It took me half a day:
The reason is that there is a field uniqueness constraint in the table. The value stored in redis should be of list type, but the string type was passed due to an error. Just clear the changed table data and restart redis.
3. It was finally online, but in the end the redemption amount could not be redeemed
Because each account has an account lock, the user cannot click continuously because it is multiple redemptions, but the account lock is added to a single redemption on, so just add the account lock to multiple redemptions.
The above introduces the experience of writing an App interface for the first time, including various aspects. I hope it will be helpful to friends who are interested in PHP tutorials.

The main advantages of using database storage sessions include persistence, scalability, and security. 1. Persistence: Even if the server restarts, the session data can remain unchanged. 2. Scalability: Applicable to distributed systems, ensuring that session data is synchronized between multiple servers. 3. Security: The database provides encrypted storage to protect sensitive information.

Implementing custom session processing in PHP can be done by implementing the SessionHandlerInterface interface. The specific steps include: 1) Creating a class that implements SessionHandlerInterface, such as CustomSessionHandler; 2) Rewriting methods in the interface (such as open, close, read, write, destroy, gc) to define the life cycle and storage method of session data; 3) Register a custom session processor in a PHP script and start the session. This allows data to be stored in media such as MySQL and Redis to improve performance, security and scalability.

SessionID is a mechanism used in web applications to track user session status. 1. It is a randomly generated string used to maintain user's identity information during multiple interactions between the user and the server. 2. The server generates and sends it to the client through cookies or URL parameters to help identify and associate these requests in multiple requests of the user. 3. Generation usually uses random algorithms to ensure uniqueness and unpredictability. 4. In actual development, in-memory databases such as Redis can be used to store session data to improve performance and security.

Managing sessions in stateless environments such as APIs can be achieved by using JWT or cookies. 1. JWT is suitable for statelessness and scalability, but it is large in size when it comes to big data. 2.Cookies are more traditional and easy to implement, but they need to be configured with caution to ensure security.

To protect the application from session-related XSS attacks, the following measures are required: 1. Set the HttpOnly and Secure flags to protect the session cookies. 2. Export codes for all user inputs. 3. Implement content security policy (CSP) to limit script sources. Through these policies, session-related XSS attacks can be effectively protected and user data can be ensured.

Methods to optimize PHP session performance include: 1. Delay session start, 2. Use database to store sessions, 3. Compress session data, 4. Manage session life cycle, and 5. Implement session sharing. These strategies can significantly improve the efficiency of applications in high concurrency environments.

Thesession.gc_maxlifetimesettinginPHPdeterminesthelifespanofsessiondata,setinseconds.1)It'sconfiguredinphp.iniorviaini_set().2)Abalanceisneededtoavoidperformanceissuesandunexpectedlogouts.3)PHP'sgarbagecollectionisprobabilistic,influencedbygc_probabi

In PHP, you can use the session_name() function to configure the session name. The specific steps are as follows: 1. Use the session_name() function to set the session name, such as session_name("my_session"). 2. After setting the session name, call session_start() to start the session. Configuring session names can avoid session data conflicts between multiple applications and enhance security, but pay attention to the uniqueness, security, length and setting timing of session names.


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