How can I illustrate the specific impact of the latest PHP code specification changes through code examples?

How to illustrate the specific impact of the latest PHP code specification changes through code examples?

Over time, specifications and best practices in programming languages ​​and development environments continue to evolve. PHP is a widely used server-side programming language, and it also has new code specification changes in constant updates and iterations. This article will use some code examples to illustrate the specific impact of the latest PHP code specification changes on development work.

1. Code indentation specification:

In the old PHP code specification, four spaces are used as the indentation standard. However, the latest PHP code specification recommends using two spaces as the indentation standard. The following is a comparison of the two indentation standards:

Old PHP code specification:

function myFunction() {
    if (condition) {
        echo "Hello World!";
    } else {
        echo "Goodbye World!";
    }
}

Latest PHP code specification:

function myFunction() {
  if (condition) {
    echo "Hello World!";
  } else {
    echo "Goodbye World!";
  }
}

By reducing the number of indented spaces, The code looks cleaner and is easier to read and understand.

2. Function and method naming convention:

In the old PHP code specification, the naming of functions and methods uses underscores as word separators, such as "my_function_name". However, the latest PHP code specification recommends using camel case naming, such as "myFunctionName". The following is a comparison of the two naming conventions:

Old PHP code specification:

function my_function_name() {
    // function body
}

Latest PHP code specification:

function myFunctionName() {
    // function body
}

Camel case naming method makes the naming of functions and methods Much clearer and easier to understand.

3. Comment specification:

In the old PHP code specification, comments start with double slashes, such as "// This is a comment". However, the latest PHP code specification recommends using the documentation comment format to provide more instructions and documentation. The following is a comparison of the two comment specifications:

Old PHP code specification:

// This is a comment

Latest PHP code specification:

/**
 * This is a comment
 */

Using the documentation comment format can be better documented Detailed information such as the purpose, parameters, and return values ​​of functions and methods is convenient for other developers to understand and use.

In summary, the latest PHP code specification changes have had a specific impact on development work. Through code examples, we can clearly see the changes in code indentation specifications, function and method naming specifications, comment specifications, etc. These changes make the code clearer, more readable, and easier to maintain. As PHP developers, we should update our code specifications in a timely manner to keep pace with the times.

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