'Which of these PHP globals might contain user input?',
'options' => [
'$_GET',
'$_POST',
'$_COOKIE',
'All of the above!'
],
'correct_answer' => 'All of the above!',
],
[
'question' =>
'How would I reverse a string in PHP?',
'options' => [
'reverse()',
'strrev()',
'string_reverse()',
"You can't reverse a string in PHP"
],
'correct_answer' => 'strrev()',
],
[
'question' =>
'How would I loop through the items in a PHP array?',
'options' => [
'foreach()',
'each()',
'array_each()',
'for $item of $array'
],
'correct_answer' => 'foreach()',
],
];
/**
* Display a single question and it's options:
*/
function show_question($number, $data){
echo '' . $data['question'] . '
';
echo '';
}
/**
* Show the form with the questions:
*/
function quiz($questions){
?>
Quiz time!
$question ){
// The correct answer comes from the questions array:
$correct_answer = $question['correct_answer'];
// Their answer comes from an array that was posted to us:
$their_answer = $_POST['answer'][$number];
// If they match, give them a point!
if( $their_answer === $correct_answer ){
$score++;
}
}
// What's the best possible score? The number of questions:
$max_score = count($questions);
?>
Quiz results
You scored out of !
Have another go?