How can a PHP variable be set to empty within a loop?

To set a PHP variable to empty within a loop, you can simply assign an empty value to the variable each time the loop iterates. This can be achieved by using the assignment operator '=' followed by an empty string ''. By doing this, the variable will be reset to empty during each iteration of the loop.

// Example loop setting a variable to empty within each iteration
$myVariable = ''; // Initialize the variable outside the loop

for ($i = 0; $i < 5; $i++) {
    $myVariable = ''; // Set the variable to empty within the loop
    // Other loop operations
}