How can the use of variables like $benutzer be optimized for better readability and efficiency in PHP code?

Using meaningful variable names like $benutzer can improve readability, but it's important to strike a balance between readability and efficiency. To optimize this, consider using more descriptive variable names that convey the purpose of the variable without being overly verbose. Additionally, avoid using special characters like $ in variable names as they can make the code harder to read.

// Example of optimizing variable names for readability and efficiency
$currentUser = "John Doe";
$userAge = 30;
$userEmail = "john.doe@example.com";