The relationship between sql and php

The relationship between sql and php

1: SQL

Structured Query Language (SQL), referred to as SQL, is a special-purpose programming language. It is a database query and programming language used to access data and query, update and manage relational database systems.

Structured Query Language is a high-level, non-procedural programming language that allows users to work on high-level data structures. It does not require users to specify the data storage method, nor does it require users to understand the specific data storage method, so different database systems with completely different underlying structures can use the same structured query language as the interface for data input and management. Structured Query Language statements can be nested, which makes it extremely flexible and powerful.

2: mysql

MySQL is a relational database management system developed by the Swedish MySQL AB company and is currently a product of Oracle. MySQL is one of the most popular relational database management systems. In terms of WEB applications, MySQL is one of the best RDBMS (Relational Database Management System) application software.

MySQL is a relational database management system. A relational database stores data in different tables instead of putting all data in one large warehouse, which increases speed and flexibility.

The SQL language used by MySQL is the most commonly used standardized language for accessing databases. MySQL software adopts a dual licensing policy and is divided into community version and commercial version. Due to its small size, fast speed, low total cost of ownership, and especially the characteristics of open source, MySQL is generally chosen as the website database for the development of small and medium-sized websites.

Due to the excellent performance of its community version, it can form a good development environment with PHP and Apache.

2: PHP

PHP (full name: PHP: Hypertext Preprocessor, that is, "PHP: Hypertext Preprocessor") is an open source general-purpose computer scripting language , especially suitable for web development and can be embedded in HTML. The syntax of PHP draws on the characteristics of popular computer languages ​​such as C language, Java and Perl, making it easy for ordinary programmers to learn. The main goal of PHP is to allow web developers to quickly write dynamic pages, but PHP is also used in many other areas.

PHP has a wide range of applications, especially in the development of web programs. Generally speaking, PHP is mostly run on a web server, and the web pages browsed by users are generated by running PHP code. PHP can run on most servers and operating systems, and using PHP is completely free.

In short:

PHP is a general computer scripting language, that is, a logic language, and SQL language is the most commonly used standardized language for accessing databases, then PHP uses logic to go to the database to call the data that the customer wants to see.

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