How important is it for PHP developers to adhere to naming conventions, such as using English identifiers for variables and functions, to maintain code readability and consistency?

It is very important for PHP developers to adhere to naming conventions, such as using English identifiers for variables and functions, to maintain code readability and consistency. By following naming conventions, developers can easily understand the purpose of variables and functions, making the code more maintainable and easier to collaborate on with other developers.

// Incorrect naming convention
$myVariable = "Hello World";

function addNumbers($num1, $num2) {
  return $num1 + $num2;
}

// Correct naming convention
$my_variable = "Hello World";

function add_numbers($num1, $num2) {
  return $num1 + $num2;
}