Seven data types that novices must know when getting started with PHP

If you want to get started with PHP, you must first learn to set up an environment, and secondly learn basic syntax. The basics of PHP include data types, operators, variables and constants, etc.

In this article, we mainly understand what data types are. Data type refers to a general term for the same type of data, generally described as XX data type.

For example, integers and decimals are both numbers, we will collectively refer to them as numeric data types. In PHP, data types are divided into 7 categories, as shown in the figure:

Examples of PHP data types are as follows:

In the above example, Add two basic knowledge points: comments and printout. Comments are intended to be notes and have no impact on the program. They are just to facilitate developers to understand the program. The printout is intended to display the results.

There are 2 types of comments in PHP, examples are as follows:

//双斜线用于注释单行 /*这个符号用于注释多行*/

There are 3 types of printouts in PHP, examples are as follows:

Another thing to note is, Every time you write a complete sentence of code, it must end with the English symbol;, otherwise an error will occur.

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