Online PHP editor | refs for SVeqH

<?php $answers = '{"0":"2","1":"3"}'; $answers = json_decode($answers, true); $options = '{"opt1":"4 Billion","opt2":"5 Billion","opt3":"6 Billion","opt4":"7 Billion"}'; $options = json_decode($options, true); uasort($options, function ($a, $b) { return rand(-1, 1); }); foreach ($options as $key => $value) { echo $value; if (in_array(substr($key, -1), $answers)) { // correct options echo "<input type='checkbox' value='".substr($key, -1)."'>" . PHP_EOL; } else { // wrong options echo "<input type='checkbox' value='".substr($key, -1)."'>" . PHP_EOL; } }