Are there any best practices for handling variable assignments within PHP functions to avoid errors or confusion?

When assigning variables within PHP functions, it's important to ensure clarity and avoid errors by following some best practices. One common approach is to explicitly declare variables as local within the function using the `global` or `static` keywords when necessary. Additionally, using clear and descriptive variable names can help prevent confusion.

function exampleFunction() {
    global $globalVariable; // Use global keyword if accessing a global variable
    static $staticVariable = 0; // Use static keyword for variables that need to retain their value between function calls
    
    $localVariable = "This is a local variable"; // Declare local variables with clear and descriptive names
}