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Technical Articles

Database

What to learn first when getting started with PHP

You need to understand the basic knowledge of WEB front-end, such as having a simple understanding of html5/css3/java/jquery, and being able to write basic WEB front-end static pages through html5+div+css3. You also need to understand basic syntax, basic framework, variables, arrays, PHP custom functions, PHP environment variables, etc.

Sep 29, 2019 am 09:13 AM

php 入门

What are the php caches?

PHP caching methods: full page static cache, partial page cache, data cache, query cache, memory cache, apache cache module, PHP APC cache extension, Opcode code cache.

Sep 24, 2019 pm 03:42 PM

php 缓存

How to get started quickly with php

The learning steps for quick introduction to PHP are: 1. Learning the development environment; 2. Learning the basic syntax of PHP; 3. Simple example application; 4. Object-oriented learning; 5. Learning the PHP framework; 6. Learning the Linxu server; 7. Learning large concurrency architecture.

Sep 21, 2019 pm 05:59 PM

php 入门

How php solves big data

The way PHP solves big data is to use Hadoop to divide the data in a table into multiple blocks and save them to multiple nodes (distributed). Each piece of data is stored on multiple nodes (cluster). Clusters can process the same data in parallel and ensure data integrity.

Sep 21, 2019 pm 05:58 PM

php 解决大数据

what is a php development engineer

PHP development engineers are PHP technical talents. Their main job is to use PHP to complete software design, development, testing, bug modification, etc. Of course it is so simple, but there will be different situations and different bugs that need to be solved at work, so it is very important to be technically competent.

Sep 10, 2019 pm 02:11 PM

php

Can redis replace mysql?

Redis cannot replace mysql; redis and mysql can only be complementary. Redis stores data in memory and reads it, which is fast, but the memory space is small; while mysql is stored on the hard disk, and the data is large, but reading the hard disk is definitely faster than reading Memory is slow.

Aug 15, 2019 pm 01:59 PM

redis mysql

What are the nosql databases?

Nosql databases include MongoDB, Cassandra, CouchDB, Hypertable, Redis, Riak, Neo4j, Hadoop HBase, Couchbase, MemcacheDB, REVENDB, Voldemort, etc.

Aug 03, 2019 am 11:09 AM

nosql

How many tools are needed for big data analysis?

Big data analysis requires many tools, such as Hadoop, Ambari, Disco, Avro, HPCC, Lumify, Pandas, Storm, Blazegraph, MongoDB and other tools.

Jul 25, 2019 pm 05:25 PM

大数据分析工具

Several methods of mysql optimization

Several methods to optimize mysql: 1. Choose the appropriate storage engine: InnoDB; 2. Ensure that data is read from memory; 3. Regularly optimize and rebuild the database; 4. Reduce disk write operations; 5. Improve disk read and write speed; 6. Make full use of indexes; 7. Analyze query logs and slow query logs; 8. Use memory disks.

Jul 20, 2019 pm 03:23 PM

mysql 数据库

Is thinkphp open source?

It's open source. ThinkPHP is a free and open source, fast and simple object-oriented lightweight PHP development framework. It was founded in early 2006 and released under the Apache2 open source agreement. It was born for agile WEB application development and simplified enterprise application development.

Jul 01, 2019 am 11:05 AM

thinkphp 开源

Why should web projects introduce redis?

The reason why redis is introduced in web projects: Redis is a high-performance key-value database. Redis supports storing relatively more value types. Redis supports master-slave synchronization. Redis is completely open source and free, and complies with the BSD protocol.

Jun 24, 2019 pm 01:28 PM

项目为什么要引入redis

What does a php architect mainly do?

What PHP architects have to do is to solve real-life problems, including technical problems, product problems, optimizing system performance, ensuring system stability, etc.

Jun 20, 2019 pm 04:23 PM

php架构师是做什么的

What are the types and characteristics of databases?

Database types: Databases are usually divided into two categories, namely relational databases and non-relational databases. Features: Relational databases are easy to maintain, easy to use, and complex to operate. As a supplement to relational databases, non-relational databases can achieve high efficiency and high performance in specific scenarios and characteristic problems.

Jun 19, 2019 pm 01:28 PM

数据库种类及特点

The difference between redis and rabbitmq

Redis: There is no corresponding mechanism to ensure message consumption. When consumer consumption fails, the message body is lost and needs to be processed manually. RabbitMQ: It has message consumption confirmation. Even if the consumer fails to consume, the message body will be automatically returned to the original queue. At the same time, it can be persisted throughout the process to ensure that the message body is correctly consumed.

Jun 18, 2019 am 09:33 AM

redis