In what ways can PHP developers optimize their code for readability and collaboration on forums, especially when seeking assistance with complex issues like currency formatting?

When seeking assistance with complex issues like currency formatting in PHP, developers can optimize their code for readability and collaboration by following best practices such as using meaningful variable names, commenting their code to explain the logic, and breaking down complex tasks into smaller, more manageable functions.

// Example of currency formatting in PHP
$amount = 1234.56;
$currency = 'USD';

$formatted_amount = number_format($amount, 2) . ' ' . $currency;

echo $formatted_amount;