I am a php programmer. How can we learn hacker attack and defense technologies?

For example, I am a programmer who is very interested in programming. I didn't learn computer science in college for other reasons. Later I learned it myself and now I am working as a php programmer. However, I am most interested in hacker attack and defense technologies. How can I learn this? For example, I am a programmer who is very interested in programming. I didn't learn computer science in college for other reasons. Later I learned it myself and now I am working as a php programmer. However, I am most interested in hacker attack and defense technologies. How can I learn this? Reply content: hi... I know that so many top hackers should go over the answers provided by the tk instructors, and there are just a few recent answers.

Ah ...... Find some relevant information and go to some related websites. If you want to learn more deeply, it is unrealistic to rely only on the script language. However, web security is quite good. Come on! Learn about php security technology,
Anti-launch of the Black php method.
Continue to learn about front-end security technologies (such as html, js, and flash,
Anti-launch of front-end hacking techniques.
On the basis of the above, advance to learn web security technologies ...... Get familiar with the eval function and become a script boy.

Ah...