How to follow the latest PHP coding standards when coding?

How to follow the latest PHP code specifications when coding?

With the continuous development of PHP, code specifications have also become an important guideline that developers must follow. Complying with code specifications can improve code readability, maintainability, and scalability. This article will introduce some of the latest PHP coding standards and provide code examples to help developers follow best practices when coding.

1. Code Indentation and Alignment
   In PHP code, use 4 spaces as the indentation standard and ensure that the code is aligned between each block and function. This makes the code more readable and helps other developers better understand your code.

Example:

if ($condition) {
    // do something
} elseif ($anotherCondition) {
    // do something else
} else {
    // do something
}

2. Naming of functions and methods
   When naming functions and methods, use camelCase nomenclature. At the same time, for the sake of code readability, it is recommended to use verbs in function names to describe the operation of the function.

Example:

function calculateSum($numbers) {
    // calculate the sum
    // return the result
}

3. Variable naming
   Variable names should also use camel case naming and use descriptive names. Please try to avoid using single characters or abbreviations as variable names, as well as using reserved keywords as variable names.

Example:

$firstName = "John";
$lastName = "Doe";
$totalAmount = 100.50;

4. Spaces around operators
   Adding spaces around operators (such as, -, *, /, and =) can improve your code readability.

Example:

$sum = $a + $b;
$result = $a * $b;

5. Use of blank lines
   Use blank lines between related code blocks to better organize the code and improve readability . For example, use blank lines between different functional or logical blocks.

Example:

function calculateSum($numbers) {
    // calculate the sum
    // return the result
}

// empty line

function calculateAverage($numbers) {
    // calculate the average
    // return the result
}

6. Use of comments
   Adding comments above key code sections can allow other developers to better understand your intentions and code function. Comments should be concise and concise and contain as little redundant information as possible.

Example:

// calculate the sum of an array of numbers
function calculateSum($numbers) {
    // code here
}

7. Reasonable use of spaces
   Use appropriate spaces in functions and control statements to increase the readability of your code. For example, use spaces in the parameter list of a function declaration and in control statements such as if and foreach.

Example:

function calculateSum($numbers) {
    $sum = 0;
    foreach ($numbers as $number) {
        $sum += $number;
    }
    return $sum;
}

8. Appropriate code wrapping
   When the length of a line of code exceeds 80 characters, the code can be wrapped. At the same time, proper code wrapping in long expressions or logical statements can improve the readability of the code.

Example:

if ($condition1 && $condition2 && $condition3 && $condition4 &&
    $condition5 && $condition6) {
    // do something
}

Summary:
Following PHP code specifications can make your code more readable, easy to maintain, and easy to expand. When coding, pay attention to code indentation and alignment, naming of functions and methods, naming of variables, spaces around operators, use of blank lines, use of comments, reasonable use of spaces, and appropriate code wrapping. These suggestions are in line with the latest PHP coding standards and hope to help you follow best practices when coding.

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