How can referencing the PHP manual aid in understanding and resolving errors in PHP scripts?

Referencing the PHP manual can aid in understanding and resolving errors in PHP scripts by providing detailed explanations of functions, parameters, and usage examples. When encountering an error, consulting the PHP manual can help identify the cause of the issue and provide guidance on how to correct it.

// Example of referencing the PHP manual to resolve an error
// Suppose we encounter an error with the array_map function
// We can consult the PHP manual to understand the correct usage

// Incorrect usage causing an error
$array = [1, 2, 3];
$result = array_map('square', $array); // Error: undefined function 'square'

// Correct usage after referencing the PHP manual
function square($num) {
    return $num * $num;
}

$result = array_map('square', $array); // Now works as expected