add server-side code and mobile app code
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Odweta
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<?php
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# API logic
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// 1. make login request
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// 2. call the desired function (get specific page)
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// 3. parse that page into a json file
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// 4. return that json file to the caller
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require 'vendor/autoload.php';
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use Goutte\Client;
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use Symfony\Component\DomCrawler\Crawler;
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$client = new Client();
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function make_login_request($username, $password) {
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global $client;
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$url = "https://aplikace.skolaonline.cz/SOL/Prihlaseni.aspx";
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$headers = [
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"__EVENTTARGET" => "dnn\$ctr994\$SOLLogin\$btnODeslat",
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"__EVENTARGUMENT" => "",
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"__VIEWSTATE" => "",
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"__VIEWSTATEGENERATOR" => "",
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"__VIEWSTATEENCRYPTED" => "",
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"__PREVIOUSPAGE" => "",
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"__EVENTVALIDATION" => "",
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"dnn\$dnnSearch\$txtSearch" => "",
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"JmenoUzivatele" => $username, # username
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"HesloUzivatele" => $password, # password
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"ScrollTop" => "",
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"__dnnVariable" => "",
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"__RequestVerificationToken" => ""
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];
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$client->request("POST", $url, $headers=$headers);
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if ($client->getResponse()->getStatusCode() != 200) {
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return false;
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} else {
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return true;
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}
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}
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function parse_teacher($onmouseover) {
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$explode_on_teacher = explode("Učitel:", $onmouseover); // [0] => something, [1] => teacher and something, 0 can be ignored
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if ($explode_on_teacher == null) {
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$explode_on_teacher = "~ ~";
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}
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$explode_on_first_tilda = explode("~", $explode_on_teacher[1]);
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$explode_on_second_tilda = explode("~", $explode_on_first_tilda[1]);
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$teacher = $explode_on_second_tilda[0];
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if ($teacher == " ") {
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$teacher = "";
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}
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if (strstr($teacher, ">")) {
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$teacher = explode("<", explode(">", $teacher)[1])[0];
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}
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return $teacher;
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}
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function get_time($times, $index) {
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foreach ($times as $cell) {
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$current_hour = explode(".", $cell->filter(".KuvHeaderNadpis")->text())[0];
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if ($index == $current_hour) {
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return explode(" - ", $cell->filter(".KuvHeaderText")->text());
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}
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}
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}
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function parse_substitute($substitutes) {
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if ($substitutes->count() == 0) {
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return 0;
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} else {
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return 1;
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}
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}
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function parse_cell($cell, $cell_counter, $times) {
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$is_empty = false;
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if ($cell->filter(".KuvBunkaRozvrhNadpis")->count() == 0) {
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$is_empty = true;
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}
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if (!$is_empty && $cell->filter("table")->filter(".KuvSuplovanaHodina")->count() == 0) {
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$name = $cell->filter(".KuvBunkaRozvrhNadpis")->first()->text();
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$place = explode("<br>", $cell->filter(".KuvBunkaRozvrhText")->first()->html())[1];
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if ($place == null) {
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$place = "";
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}
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$teacher = parse_teacher($cell->filter("table")->filter("td")->first()->attr("onmouseover"));
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$is_substitute = parse_substitute($cell->filter(".KuvSuplujiciHodina"));
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$number = $cell_counter;
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$start = get_time($times, $cell_counter)[0]; // gives [start, end]
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$end = get_time($times, $cell_counter)[1];
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return [
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"name" => $name,
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"place" => $place,
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"teacher" => $teacher,
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"is_substitute" => $is_substitute,
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"number" => $number,
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"start" => $start,
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"end" => $end
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];
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} else {
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$number = $cell_counter;
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$start = get_time($times, $cell_counter)[0];
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$end = get_time($times, $cell_counter)[1];
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return [
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"name" => "Volno",
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"place" => "Volno",
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"teacher" => "Volno",
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"is_substitute" => "Volno",
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"number" => $number,
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"start" => $start,
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"end" => $end
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];
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}
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}
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function parse_cal_week($crawler) {
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$week = [];
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$table = $crawler->filter("#CCADynamicCalendarTable");
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$rows_ = $table->filter("tr");
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$times_ = $rows_->first()->filter("th");
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$times = [];
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$rows = [];
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$rows_->each(function (Crawler $node, $i) use (&$rows) {
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$rows[] = $node;
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});
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array_shift($rows);
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$times_->each(function (Crawler $node, $i) use (&$times) {
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$times[] = $node;
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});
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array_shift($times);
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foreach ($rows as $row) { // for every day do:
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$filtered_names = $row->filter(".KuvHeaderNadpis");
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$filtered_dates = $row->filter(".KuvHeaderText");
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if ($filtered_names->count() > 0 && $filtered_dates->count() > 0) {
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$name = $filtered_names->first()->text();
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$date = $filtered_dates->first()->text();
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$subjects = [];
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$cells_ = $row->filter(".DctCell");
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$cells = [];
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$cells_->each(function (Crawler $node, $i) use (&$cells) {
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$cells[] = $node;
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});
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$cell_counter = 1; // start from 1
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foreach ($cells as $cell) {
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$subject = parse_cell($cell, $cell_counter, $times);
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$colspan = $cell->attr("colspan");
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$cell_counter += 1;
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if ($colspan != null) {
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array_push($subjects, $subject);
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for ($i = 1; $i < $colspan; $i++) {
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$subject = parse_cell($cell, $cell_counter, $times);
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$cell_counter += 1;
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array_push($subjects, $subject);
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}
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} else {
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array_push($subjects, $subject);
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}
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}
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// get rid of trash lectures from the end
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while ($subjects[count($subjects)-1]["name"] == "Volno") {
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array_pop($subjects);
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}
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$day = [
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"name" => $name,
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"date" => $date,
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"subjects" => $subjects
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];
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array_push($week, $day);
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}
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}
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return $week;
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}
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function get_cal_week() {
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global $client;
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$url = "https://aplikace.skolaonline.cz/SOL/App/Kalendar/KZK001_KalendarTyden.aspx";
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$crawler = $client->request("GET", $url);
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if ($client->getResponse()->getStatusCode() != 200) {
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return "Could not fetch weelky calendar data";
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} else {
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return parse_cal_week($crawler);
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}
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}
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function create_json_file($body, $status_code) {
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$json = ["body" => $body, "status_code" => $status_code];
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return json_encode($json);
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}
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if (!isset($_POST["username"]) || !isset($_POST["password"])) {
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echo create_json_file(json_encode("Credentials not supplied"), 1); // status 1 => failure
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} else {
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if (!make_login_request($_POST["username"], $_POST["password"])) {
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echo create_json_file("Invalid credentials", 1);
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}
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if ($_POST["cal_week"]) {
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echo create_json_file(get_cal_week(), 0);
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}
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if ($_POST["cal_tdy_tmr"]) {
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echo create_json_file(get_cal_tdy_tmr(), 0);
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}
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if ($_POST["grades"]) {
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echo create_json_file(get_grades(), 0);
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}
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}
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?>
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