A simple system for creating multiple-choice questions for an audience to
answer on their phones. Responses are tallied and displayed in real-time.
https://openquestion.netsyms.com
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.1 KiB
51 lines
1.1 KiB
<?php
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require_once __DIR__ . "/required.php";
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$question = $VARS['question'];
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$answers = $VARS['answers'];
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if (trim($question) == "" || trim($answers) == "") {
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header("Location: ./create/error");
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}
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/**
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* Generate question access codes.
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* https://stackoverflow.com/a/4356295
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* @param int $length
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* @return string
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*/
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function generateRandomString($length = 4) {
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$characters = 'ABCEFGHJKLMNPQRSTWXYZ';
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$charactersLength = strlen($characters);
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$randomString = '';
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for ($i = 0; $i < $length; $i++) {
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$randomString .= $characters[rand(0, $charactersLength - 1)];
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}
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return $randomString;
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}
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$length = 4;
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$code = generateRandomString($length);
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$tries = 0;
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while ($database->has("questions", ['qcode' => $code])) {
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if ($tries > 10) {
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$length++;
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}
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$code = generateRandomString($length);
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$tries++;
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}
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$database->insert("questions", ['qtext' => $question, 'qcode' => $code]);
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$qid = $database->id();
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$answers = explode("\n", $answers);
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foreach ($answers as $ans) {
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if (trim($ans) != "") {
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$database->insert("answers", ['atext' => trim($ans), 'qid' => $qid]);
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}
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}
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header("Location: ./q/$code");
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