How can developers avoid errors when swapping array indexes in functions like mktime() for date manipulation in PHP?

To avoid errors when swapping array indexes in functions like mktime() for date manipulation in PHP, developers should ensure that they are using the correct indexes for the parameters required by the function. It is important to refer to the documentation to understand the required order of parameters and use them accordingly in the function call.

// Correct way to use mktime() for date manipulation
$timestamp = mktime(0, 0, 0, 12, 31, 2021);
echo date("Y-m-d", $timestamp);