In the context of PHP, why is it important to maintain consistent casing in variables, function names, and other elements of code?

In PHP, it is important to maintain consistent casing in variables, function names, and other elements of code because PHP is a case-sensitive language. If the casing is inconsistent, PHP will treat them as different entities, leading to errors and unexpected behavior in the code. To ensure consistency, it is recommended to follow a naming convention (such as camelCase or snake_case) and stick to it throughout the codebase.

// Inconsistent casing example
$myVariable = "hello";
echo $MyVariable; // This will result in an error

// Consistent casing example
$myVariable = "hello";
echo $myVariable; // This will output "hello"