How can closures be utilized in PHP to improve code readability and maintainability?

Using closures in PHP can improve code readability and maintainability by encapsulating logic within a function and allowing it to be passed around as a variable. This can make the code more modular, easier to understand, and reduce code duplication. 

// Example of using closures to improve code readability and maintainability

// Define a closure that calculates the square of a number
$square = function($num) {
    return $num * $num;
};

// Use the closure to calculate the square of 5
echo $square(5); // Output: 25

Keywords

closures PHP code readability maintainability utilization

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