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Should the php variable be capitalized?

2025-04-02 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

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This article introduces the knowledge of "should php variables be capitalized?". In the operation of actual cases, many people will encounter such a dilemma. Next, let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Php variables can be capitalized, PHP variable rules include: 1, the variable to start with the $symbol, followed by the name of the variable; 2, the variable name must start with letters or underscore characters; 3, the variable name can only contain alphanumeric and underscore; 4, the variable name can not contain spaces; 5, the variable name is case-sensitive.

This article operating environment: Windows7 system, PHP7.4 version, Dell G3 computer.

Can't php variables be capitalized?

Php variables can be used in uppercase.

Variables can be short names, such as x and y, or more descriptive names, such as age, carname, totalvolume.

Variables are "containers" used to store information.

PHP variable rules:

The variable begins with the $symbol, followed by the name of the variable

Variable names must start with a letter or an underscore character

Variable names can only contain letters, numbers, and underscores (Amurz, 0-9, and _)

Variable names cannot contain spaces

Variable names are case-sensitive ($y and $Y are two different variables)

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