What are some best practices for naming variables in PHP scripts to improve readability and maintainability?

When naming variables in PHP scripts, it is important to choose names that are descriptive and meaningful. This helps improve readability and maintainability of the code, making it easier for other developers to understand the purpose of each variable. It is also recommended to follow a consistent naming convention, such as using camelCase or snake_case, to make the code more uniform.

// Example of using descriptive variable names in PHP
$firstName = "John";
$lastName = "Doe";
$age = 30;

echo "Name: " . $firstName . " " . $lastName . ", Age: " . $age;