What are some common pitfalls to avoid in PHP function naming?

For PHP function naming pitfalls, it is recommended to follow the following guidelines: use descriptive names; ensure that the order of parameters is consistent; avoid using static variable naming; use abbreviations with caution; and be case-sensitive.

PHP Function Naming: Avoiding Common Pitfalls

In PHP function naming, it is crucial to follow conventions to ensure that your code readability and maintainability. Here are some common pitfalls you should avoid:

1. Use non-descriptive names

• Avoid using names such as foo()# Common names like ##, bar() or process().
For example:
• calc_total() can describe the function’s function more accurately than process_numbers().

2. Obfuscating parameter order

The order of parameters should always be consistent and match the expected behavior of the function.
• For example:
• sort($arr, SORT_ASC) should be more intuitive than sort(SORT_ASC, $arr).

3. Use static variable naming

Avoid using
• static or global## in function names # and other static variable prefixes. Doing so will reduce code readability and may lead to naming conflicts.

4. Overuse of abbreviations

Abbreviations can save characters, but should be used only when necessary.

• Excessive use of abbreviations can make code difficult to understand and debug.
• For example:
calc_disc_price()
• is easier to understand than calcCDPrice().

5. Case-insensitive

Function names should be case-sensitive so that they can be easily identified.

• For example:
processUser()
• and processUSER() are two different functions.

Practical case:

The following is an example function name that follows the above rules:

function calculateTotalDiscount(float $price, float $discountPercentage): float
{
    return $price * (1 - $discountPercentage / 100);
}

This name conforms to the following guidelines :

It descriptively specifies that the purpose of the function is to calculate the total discount.

• The order of parameters is intuitive: the first parameter is the price, the second parameter is the discount percentage.
• It does not contain any prefix or suffix.
• Names are case-sensitive and do not use excessive abbreviations.

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