How can the issue of $checked being overwritten in a loop be addressed when trying to display multiple checkbox values from an array in PHP?

Issue: The problem arises when displaying multiple checkbox values from an array in PHP using a loop. If the $checked variable is not reset in each iteration of the loop, it can get overwritten and cause unexpected behavior in the checkbox selections. Solution: To address this issue, the $checked variable should be reset to an empty string at the beginning of each iteration of the loop. This ensures that each checkbox is displayed with the correct checked status based on its value from the array.

<?php
$checkbox_values = ['option1', 'option2', 'option3'];
$selected_values = ['option1', 'option3']; // Example selected values from the array

foreach($checkbox_values as $value) {
    $checked = (in_array($value, $selected_values)) ? 'checked' : ''; // Reset $checked variable in each iteration
    echo "<input type='checkbox' name='checkbox[]' value='$value' $checked> $value <br>";
}
?>