Should PHP function names use Hungarian notation?

No, Hungarian nomenclature is not recommended. Although it can improve readability, it will cause code redundancy, reduce maintainability, and violate the clear and concise style of modern programming languages. Alternatives include using meaningful names, type hints, and documentation comments.

#PHP Function Naming: Should I use Hungarian notation?

Introduction

Hungarian nomenclature is a naming convention that requires that the names of variables, functions, and classes include information about their data types or other attributes. . This convention is intended to improve code readability and maintainability.

Advantages

• Improved readability: It is easier to understand the variable or function.
• Reduce errors: By explicitly specifying the data type, you can help prevent the wrong type of data from being assigned to a variable.

Disadvantages

• Code redundancy: Hungarian nomenclature leads to code redundancy because type information is already present in the variable or in the function's type declaration.
• Poor maintainability: If the type or other properties of the data change, all variables or functions named using Hungarian nomenclature must be updated.
• Violation of coding style: Most modern programming languages ​​discourage the use of Hungarian notation because it goes against clear and concise coding style.

Practical case

Suppose we have a function named calculate_area, which calculates the area of ​​a rectangle. Using Hungarian nomenclature, the function can be named:

function calculate_area_int($width, $height) {
    // ...
}

In this example, the _int suffix means that the width and height parameters are integers type.

Alternatives

Alternatives to Hungarian nomenclature include:

• Use meaningful names: is Choose names for variables and functions that describe their purpose, such as rectangle_width and rectangle_area.
• Type hints:In PHP 7, you can use type hints to explicitly specify the types of variables and function parameters.
• Documentation comments: Use documentation comments to provide variables and functions with additional information about their data types and purpose.

Conclusion

Although Hungarian nomenclature has certain advantages in improving readability, its shortcomings are often more obvious. Modern programming languages ​​promote a clear and concise coding style, which is contrary to the Hungarian nomenclature. Therefore, alternatives such as meaningful names, type hints, and documentation comments are recommended.

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