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Barand

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Everything posted by Barand

  1. Barand
    I am assuming that this is an AJAX/Fetch process as you reference javscript in your initial post. Is it?
  2. Barand
    You don't need the ids for that. try { begin transaction insert seat booking(s) commit exit('OK') } catch (exception) { rollback exit('Error') }
  3. Barand
    If they book several seats you will have several booking_ids. What will you do with them when you have them? The reason for getting the last insert id is to use it as a foreign key when you post child records (eg write invoice header then invoice item records). From your data model this isn't the case.
  4. Barand
    Like this? Code <?php if ($_SERVER['REQUEST_METHOD'] == 'POST') { ## ## Process posted data ## $number = $_POST['number_entered'] ?? 0; $answer = $_POST['answer'] ?? 0; $question = $_POST['question'] ?? ''; $check = $number == $answer ? "<span class='w3-badge w3-green w3-xlarge'>&check;</span>" : "<span class='w3-badge w3-red w3-xlarge'>&times;</span>"; $output = <<<OUT <span class="qtext">$question $number</span> $check <br><br> <a href='' class='w3-button w3-indigo'>Ask me another</a> OUT; } else { ## ## Ask new question ## $rand1 = rand(1, 9); $rand2 = rand(1, 9); $randoperator = rand(0, 3); $operators = array('&times;', '&divide;', '&plus;', '&minus;'); $finalvalue = match($randoperator) { 0 => $rand1 * $rand2, 1 => handleDivide($rand1, $rand2), 2 => $rand1 + $rand2, 3 => $rand1 - $rand2 }; $question = "$rand1 {$operators[$randoperator]} $rand2 ="; $output = <<<OUT <form method='POST'> <span class="qtext">$question</span> <input type='hidden' name='question' value='$question'> <input type='hidden' name='answer' value='$finalvalue'> <input type='number' name='number_entered' placeholder='?' autofocus> <br><br> <button class='w3-button w3-indigo'>Submit answer</button> </form> OUT; } function handleDivide(&$r1, $r2) { $fv = $r1; $r1 *= $r2; return $fv; } ?> <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Example</title> <link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css"> <style type='text/css'> div { padding: 16px; text-align: center; } input { width: 70px; text-align: center; font-size: 20pt; } .qtext { font-size: 20pt; } </style> </head> <body> <div class='w3-blue-gray'> <h1>Do the Math</h1> </div> <div> <?= $output ?> </div> </body> </html>
  5. Barand
    An easier approach is to search for those records with today's char in the recurrence column set to "1" $sql = "SELECT id , recurrence , description , begindate , enddate FROM schedule WHERE ? BETWEEN begindate AND enddate AND SUBSTRING(recurrence, WEEKDAY(?)+1, 1) AND active "; $res = $pdo->prepare($sql); $searchDate = '2024-02-28'; $res->execute([$searchDate, $searchDate]); Example outputs searchdate = Feb 26 2024 (Monday) +----+------------+-------------+------------+------------+ | id | recurrence | description | begindate | enddate | +----+------------+-------------+------------+------------+ | 39 | 1010100 | Event1 | 2023-08-31 | 3000-01-01 | +----+------------+-------------+------------+------------+ searchdate = Feb 28 2024 (Wednesday) +----+------------+-------------+------------+------------+ | id | recurrence | description | begindate | enddate | +----+------------+-------------+------------+------------+ | 39 | 1010100 | Event1 | 2023-08-31 | 3000-01-01 | | 51 | 0010000 | Event2 | 2023-08-31 | 3000-01-01 | +----+------------+-------------+------------+------------+
  6. Barand
    As well as chaging the rand() ranges to 1-9 I would also change the way rand1 and rand2 are used in the case of division. allocate rand1 to the finalvalue and then multiply rand1 by rand2. This avoids none integer results. IE.. rand1 * rand2 ------------- = rand1 rand2 My code for this bit would be $rand1 = rand(1, 9); $rand2 = rand(1, 9); $randoperator = rand(0, 3); $operators = array('&times;', '&divide;', '&plus;', '&minus;'); $finalvalue = match($randoperator) { 0 => $rand1 * $rand2, 1 => handleDivide($rand1, $rand2), 2 => $rand1 + $rand2, 3 => $rand1 - $rand2 }; $question = "$rand1 {$operators[$randoperator]} $rand2 ="; echo "$question $finalvalue<br>"; function handleDivide(&$r1, $r2) { $fv = $r1; $r1 *= $r2; return $fv; }
  7. Barand
    OK, I give up guessing. What is wrong with it?
  8. Barand
    You are trying to do your processing when number_entered is NOT set. if(!isset($_POST['number_entered'])){ ^
  9. Barand
    Rule of thumb: If all you are doing is GETting data to display then use GET If what you are doing has side-effects, such as logging in or updating a db table, use POST
  10. Barand
    How are you handling the reponse to make them red?
  11. Barand
    Try it without the above line. Specifying the call type as "JSON" has always sufficed for me.
  12. Barand
    It won't be a million miles out. Try changing the last line of my code to $result = json_encode(array_values($categories));
  13. Barand
    Remember that all output from a script called by AJAX or fetch becomes part of the response that is returned. If a JSON response is expected then only json data should be output.
  14. Barand
    Start by removing the echo ...print_r() so it isn't included in the response (which is supposed to be JSON)
  15. Barand
    Try $categories = []; foreach ($res as $r) { if (!isset($categories[$r['id']])) { $categories[$r['id']] = [ 'catid' => $r['id'], 'catname' => $r['name'], 'videos' => [] ]; } $categories[$r['id']]['videos'][] = [ 'vidname' => $r['fname'], 'vidthumbnail' => $r['fthumbnail'], 'vidid' => $r['fid'], 'vidlink' => $r['flink'] ]; } $result = json_encode($categories);
  16. Barand
    See https://www.php.net/mkdir
  17. Barand
    Yes. That is what I was going to suggest if you didn't want to use the hidden field approach. That way you send just a single querystring which will be handled automatically to create the $_POST array Perhaps $stmt = $pdo->prepare("INSERT INTO mytable (zoneType, zoneName, printValue) VALUES (?,?,?)"); foreach ($_POST['zoneName'] as $k => $zn) { if ($zn) { $stmt->execute([ $_POST['zoneType'][$k], $zn, $_POST['printValue'][$k] ]); } }
  18. Barand
    Your POST array looks like this, as you separate the "ajax" value from the serialized data in your JSON string... Array ( [ajax] => testdata [data] => zoneType%5B%5D=1&zoneName%5B%5D=aa&printValue%5B%5D=1&zoneType%5B%5D=1&zoneName%5B%5D=bb&printValue%5B%5D=2&zoneType%5B%5D=1&zoneName%5B%5D=cc&printValue%5B%5D=3 ) With my code, where only the serialized form data is sent (which includes the "ajax" value from a hidden form field) it looks like this... Array ( [ajax] => testdata [zoneType] => Array ( [0] => 1 [1] => 1 [2] => 1 ) [zoneName] => Array ( [0] => aa [1] => bb [2] => cc ) [printValue] => Array ( [0] => 1 [1] => 2 [2] => 3 ) )
  19. Barand
    I think you $zonearray as a string. Try your $params instead.
  20. Barand
    No. The $_POST array will be the same as if the form had been submitted
  21. Barand
    Here's a sample script <?php ## ## HANDLE AJAX REQUEST ## if (isset($_POST['ajax'])) { if ($_POST['ajax']=='testdata') { exit('<pre>' . print_r($_POST, 1) . '</pre>'); // JUST RETURNS THE ARRAY OF POSTED DATA FOR DISPLAY } exit(); } ?> <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Example</title> <script src="https://code.jquery.com/jquery-3.6.4.min.js"></script> <script type='text/javascript'> $(function() { $("#form1").submit(function(ev) { ev.preventDefault() let fdata = $(this).serialize() console.log(fdata) $.post( "", fdata, function(resp) { $("#test-output").html(resp) }, 'TEXT' ) }) }) </script> </head> <body> <form id='form1'> <input type='hidden' name='ajax' value='testdata'> <div class="col"> <label for="zoneType" class="form-label">Zone Type</label> <select name="zoneType[]" class="form-select zoneType"> <option value="1">Normal Zone</option><option value="2">Special Zone</option> </select> </div> <div class="col"> <label for="zoneName" class="form-label">Zone Name</label> <input type="text" class="form-control simple-string zoneName" name="zoneName[]"> </div> <div class="col"> <label for="printValue" class="form-label">Print Value</label> <input type="text" class="form-control simple-string printValue" name="printValue[]"> </div> <br> <div class="col"> <label for="zoneType" class="form-label">Zone Type</label> <select name="zoneType[]" class="form-select zoneType"> <option value="1">Normal Zone</option><option value="2">Special Zone</option> </select> </div> <div class="col"> <label for="zoneName" class="form-label">Zone Name</label> <input type="text" class="form-control simple-string zoneName" name="zoneName[]"> </div> <div class="col"> <label for="printValue" class="form-label">Print Value</label> <input type="text" class="form-control simple-string printValue" name="printValue[]"> </div> <br> <div class="col"> <label for="zoneType" class="form-label">Zone Type</label> <select name="zoneType[]" class="form-select zoneType"> <option value="1">Normal Zone</option><option value="2">Special Zone</option> </select> </div> <div class="col"> <label for="zoneName" class="form-label">Zone Name</label> <input type="text" class="form-control simple-string zoneName" name="zoneName[]"> </div> <div class="col"> <label for="printValue" class="form-label">Print Value</label> <input type="text" class="form-control simple-string printValue" name="printValue[]"> </div> <br> <input type='submit'> </form> <div id='test-output'> </div> </body> </html> [edit]... NOTE - your form's input fields need name attributes
  22. Barand
    Yes. Instead of saying this...
  23. Barand
    Whichever approach you use, do NOT connect to the database inside every function. Connect once to the db at start of each script and pass the connection to the functions. (The connection is the slowest part of the process) So the function calls are getFirstName($pdo, $id) getLastName($pdo, $id) getEmail($pdo, $id) getDietary($pdo, $id) getX($pdo, $id) I'd go with a single function $user = getUserData($pdo, $user_id); // get an array containing the user data if ($user) { $fullname = $user['firstname'] . ' ' . $user['lastname']; // use array elements as required } function getUserData($pdo, $id) { $res = $pdo->prepare("SELECT firstname , lastname , email , diet , gender , x , y , z FROM user WHERE id = ? "); $res->execute([$id]); return $res->fetch(); }
  24. Barand
    Post the output from... echo $sql;
  25. Barand
    Only when you need to report an error that the user can do something about (like duplicates). Most DB errors are beyond user control so I don't bother with try..catch and just let php handle the error
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