What are the best practices for clearing variables in PHP scripts, especially in the context of endloop loops?

When using endloop loops in PHP scripts, it is important to clear variables to avoid potential conflicts or unintended behavior. One best practice is to unset variables at the end of each iteration to ensure they are not carried over to the next iteration. This can be done using the unset() function to remove the variable from memory.

// Example of clearing variables in an endloop loop
$items = ['apple', 'banana', 'cherry'];

foreach ($items as $item) {
    // Do something with $item
    echo $item . "<br>";
    
    // Clear the $item variable at the end of each iteration
    unset($item);
}