How can Magic Numbers in PHP code impact code readability and maintainability, especially in functions like fetchPdo?

Magic Numbers in PHP code can impact code readability and maintainability because they are arbitrary values that lack context, making it difficult for other developers to understand their purpose. In functions like fetchPdo, using magic numbers can make the code harder to maintain as changes to these values may not be immediately obvious. To solve this issue, it is recommended to define constants for these magic numbers with meaningful names that describe their purpose, making the code more readable and easier to maintain. 

// Define constants for magic numbers in fetchPdo function
define('FETCH_ASSOC', PDO::FETCH_ASSOC);
define('FETCH_OBJ', PDO::FETCH_OBJ);

function fetchPdo($statement, $fetchStyle = FETCH_ASSOC) {
    // Function implementation
}

Keywords

Magic Numbers PHP code code readability maintainability fetchPdo

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