What are the best practices for naming variables in PHP scripts?

When naming variables in PHP scripts, it is important to follow best practices to ensure code readability and maintainability. 1. Use descriptive names that clearly indicate the purpose of the variable. 2. Follow a consistent naming convention, such as camelCase or snake_case. 3. Avoid using abbreviations or single-letter variable names. 4. Prefix variable names with data type identifiers (e.g. $strName for a string variable).

// Example of naming variables following best practices
$firstName = "John";
$lastName = "Doe";
$age = 30;
$emailAddress = "john.doe@example.com";