How can PHP developers improve the clarity and specificity of their code when dealing with file inclusions and server interactions?

PHP developers can improve the clarity and specificity of their code when dealing with file inclusions and server interactions by using absolute paths instead of relative paths for including files and by using clear and descriptive variable names for server interactions. Additionally, using comments and documentation to explain the purpose of each file inclusion and server interaction can also enhance code readability. 

// Using absolute paths for file inclusions
include_once(__DIR__ . '/path/to/file.php');

// Using clear and descriptive variable names for server interactions
$request = $_POST['data'];

// Adding comments and documentation to explain the purpose of file inclusions and server interactions
// Include the database connection file
include_once(__DIR__ . '/db_connection.php');

// Retrieve user input from the POST request
$username = $_POST['username'];
$password = $_POST['password'];

Keywords

file inclusions server interactions PHP functions error handling code clarity

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