How can PHP manuals help in improving coding skills and understanding of language conventions?

PHP manuals can help in improving coding skills and understanding of language conventions by providing detailed explanations of PHP functions, syntax, and best practices. By referring to the manuals, developers can learn how to use functions effectively, understand the correct syntax for different operations, and follow coding conventions to write clean and readable code.

// Example of using PHP manual to improve coding skills
// Using the PHP manual to learn how to use the array_map function

// Define a callback function
function square($num) {
    return $num * $num;
}

// Create an array
$numbers = [1, 2, 3, 4, 5];

// Use array_map function to apply the callback function to each element in the array
$squared_numbers = array_map("square", $numbers);

// Output the squared numbers
print_r($squared_numbers);