


The first article with a sense of ritual, talking about my experience in entering the industry and the original intention of starting a blog
After graduating from college 5 years ago (his age was revealed), I worked in a state-owned communications enterprise. I was engaged in maintenance of communications equipment, upgrading internal systems, and simple maintenance of equipment. The more complex ones were outsourced to manufacturers and maintenance agencies, so If your personal skills have not been improved, and you have been working like this for 5 years, state-owned enterprises cannot fire you. There were also very busy times during this period, completing the tasks of the head office and working overtime. At this time, I started to think about what I was working overtime for. The salary was not high. Because I was in an operation and maintenance position, my mobile phone had to be online 24 hours a day, in a private space. It's annoying to be broken. The idea of jumping out came up.
Looking back on the past five years, in fact, except for necessary workplace skills, my personal technical ability has not improved at all. This is a very sad thing. I started to live in old age at a young age. So, I decided to jump out and change careers!
I picked up the programming skills I learned in college and taught myself PHP skills for half a year. I quit after the Chinese New Year this year without any regrets. After I came out, I realized how much of a fool I was. The outside world was cruel. I really felt that five years had been wasted. The salary in this industry is not low, but work experience is required. The recruitment information says that you must be proficient and familiar with various technologies, which is a bit hopeless.
Fortunately, I found a start-up outsourcing company. I have successfully entered the Internet industry.
During more than a month of work, due to my weak foundation, I often had to search for many methods online, modify them, and implement them in my projects. Since the methods are scattered in various projects, it is not conducive for me to recall and use them, so I decided to open a blog to record my experience. I also hope to help other beginners who are struggling like me and encourage each other!
<span style="color: #008080">1</span> <span style="color: #000000">php </span><span style="color: #008080">2</span> <span style="color: #0000ff">echo</span> "go fight!"<span style="color: #000000">; </span><span style="color: #008080">3</span> ?>
The above is the detailed content of The first article with a sense of ritual, talking about my experience in entering the industry and the original intention of starting a blog. For more information, please follow other related articles on the PHP Chinese website!

In PHP, you can use session_status() or session_id() to check whether the session has started. 1) Use the session_status() function. If PHP_SESSION_ACTIVE is returned, the session has been started. 2) Use the session_id() function, if a non-empty string is returned, the session has been started. Both methods can effectively check the session state, and choosing which method to use depends on the PHP version and personal preferences.

Sessionsarevitalinwebapplications,especiallyfore-commerceplatforms.Theymaintainuserdataacrossrequests,crucialforshoppingcarts,authentication,andpersonalization.InFlask,sessionscanbeimplementedusingsimplecodetomanageuserloginsanddatapersistence.

Managing concurrent session access in PHP can be done by the following methods: 1. Use the database to store session data, 2. Use Redis or Memcached, 3. Implement a session locking strategy. These methods help ensure data consistency and improve concurrency performance.

PHPsessionshaveseverallimitations:1)Storageconstraintscanleadtoperformanceissues;2)Securityvulnerabilitieslikesessionfixationattacksexist;3)Scalabilityischallengingduetoserver-specificstorage;4)Sessionexpirationmanagementcanbeproblematic;5)Datapersis

Load balancing affects session management, but can be resolved with session replication, session stickiness, and centralized session storage. 1. Session Replication Copy session data between servers. 2. Session stickiness directs user requests to the same server. 3. Centralized session storage uses independent servers such as Redis to store session data to ensure data sharing.

Sessionlockingisatechniqueusedtoensureauser'ssessionremainsexclusivetooneuseratatime.Itiscrucialforpreventingdatacorruptionandsecuritybreachesinmulti-userapplications.Sessionlockingisimplementedusingserver-sidelockingmechanisms,suchasReentrantLockinJ

Alternatives to PHP sessions include Cookies, Token-based Authentication, Database-based Sessions, and Redis/Memcached. 1.Cookies manage sessions by storing data on the client, which is simple but low in security. 2.Token-based Authentication uses tokens to verify users, which is highly secure but requires additional logic. 3.Database-basedSessions stores data in the database, which has good scalability but may affect performance. 4. Redis/Memcached uses distributed cache to improve performance and scalability, but requires additional matching

Sessionhijacking refers to an attacker impersonating a user by obtaining the user's sessionID. Prevention methods include: 1) encrypting communication using HTTPS; 2) verifying the source of the sessionID; 3) using a secure sessionID generation algorithm; 4) regularly updating the sessionID.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Dreamweaver CS6
Visual web development tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

Atom editor mac version download
The most popular open source editor

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
