How can you prevent variables from carrying over between iterations in a loop in PHP?

To prevent variables from carrying over between iterations in a loop in PHP, you can simply unset the variable at the end of each iteration. This ensures that the variable is cleared before the next iteration begins. 

// Example loop where variable needs to be cleared after each iteration
for ($i = 0; $i < 5; $i++) {
    $myVar = "Iteration $i";
    echo $myVar . "<br>";
    
    // Unset the variable to prevent it from carrying over
    unset($myVar);
}

Keywords

PHP loop variables scope iteration

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