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Something like this? CODE <?php include 'db_inc.php'; // YOUR CONNECTION $pdo = pdoConnect('movies'); // CODE GOES HERE ################################################################################ ## PROCESS AJAX REQUESTS ################################################################################ if (isset($_GET['ajax'])) { $res = $pdo->prepare("SELECT m.id as movie_id , m.title , m.image , g.description as genre , CONCAT(m.running_time DIV 60, ' hrs ', m.running_time % 60, ' mins') as running_time , date_format(sg.screen_on, '%W, %D %b') as date , s.name as screen_num , TIME_FORMAT(sg.screen_at, '%H:%i') as start_time FROM screening sg JOIN screen s ON sg.screen_id = s.id JOIN movie m ON sg.movie_id = m.id JOIN genre g ON g.id = m.genre WHERE dayname(screen_on) = :day ORDER BY movie_id, screen_on, sg.screen_at "); $res->execute([ 'day' => $_GET['day'] ]); $data = []; # # Put data into an array with same structure a required output # - array of movies, each movie having arrays of screenings # foreach ($res as $r) { if (!isset($data[$r['movie_id']])) { $data[$r['movie_id']] = [ 'title' => $r['title'], 'image' => $r['image'], 'genre' => $r['genre'], 'runtime' => $r['running_time'], 'screenings' => [] ]; } $data[$r['movie_id']]['screenings'][$r['date']][] = ['start' => $r['start_time'], 'sno' => $r['screen_num'] ]; } exit(json_encode($data)); } ?> <!DOCTYPE html> <html lang="en"> <head> <meta name="generator" content="PhpED 12.0 (Build 12010, 64bit)"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>olumide</title> <link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css"> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.2.1/css/all.min.css"> <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <script type='text/javascript'> function showScreenings(day) { $("#movie-listings").html("") $.get( "", {"ajax":1, "day":day}, function(resp) { $.each(resp, function(mid, mdata) { let title = `<h2>${mdata.title}</h2><h4 class='w3-text-gray'>${mdata.genre} (${mdata.runtime})</h4>` $("#movie-listings").append(title) $.each(mdata.screenings, function(dt, ddata) { let datesub = `<h3>${dt}</h3>` $("#movie-listings").append(datesub) $("#movie-listings").append("<div class='screenings'") $.each(ddata, function(k, sdata) { let scr = `<div class='screening'><b>${sdata.start}</b><br>${sdata.sno}</div>` $("#movie-listings").append(scr) }) $("#movie-listings").append("</div>") }) }) }, "JSON" ) } </script> <style type='text/css'> .days { padding: 16px; text-align: center; } .screening { width : 20%; display: inline-block; margin-right: 16px; margin-bottom: 8px; padding: 4px; border: 5px solid black; font-size: 9pt; } </style> </head> <body> <nav class="days"> <button onclick="showScreenings('Monday')">Monday</button> <button onclick="showScreenings('Tuesday')">Tuesday</button> <button onclick="showScreenings('Wednesday')">Wednesday</button> <button onclick="showScreenings('Thursday')">Thursday</button> <button onclick="showScreenings('Friday')">Friday</button> <button onclick="showScreenings('Saturday')">Saturday</button> <button onclick="showScreenings('Sunday')">Sunday</button> </nav> <div id='movie-listings'class='w3-content w3-padding w3-card-4'> <!-- LISTINGS GO HERE --> </div> </body> </html>
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I guess you don't understand that phpfreaks is a free site, with expert help provided by volunteers. Given the fact that everyone is donating their time and expertise to try and help people like yourself, the argument that you host a free site with source code you got from somewhere else for free, means you shouldn't ever have to learn anything (which can be learned in a few hours) will not get you much sympathy here.3 points
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By far the best the best way is to fix whatever they are warning you about.3 points
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You've done the hard work already. Instead of calculating the product, store the selected array. <?php $primes = array(2, 3, 5, 7, 11, 13, 17, 19, 23); $combos = []; function getAllCombinations($arr, $n, &$combos, $selected = array(), $startIndex = 0) { if ($n == 0) { $combos[] = $selected; // $product = 1; // foreach ($selected as $prime) { // $pr[] = $prime; // $product *= $prime; // $pr[] = $prime; // } // echo "Product: $product\n"; return; } for ($i = $startIndex; $i < count($arr); $i++) { $selected[] = $arr[$i]; getAllCombinations($arr, $n - 1, $combos, $selected, $i + 1); array_pop($selected); // Backtrack and remove the element for next iteration } } getAllCombinations($primes, 4, $combos); echo '<pre>'; foreach ($combos as $com) { printf("%-35s = %5d<br>", join(' × ', $com), array_product($com)); // output numbers and product } ?> giving 2 × 3 × 5 × 7 = 210 2 × 3 × 5 × 11 = 330 2 × 3 × 5 × 13 = 390 2 × 3 × 5 × 17 = 510 2 × 3 × 5 × 19 = 570 2 × 3 × 5 × 23 = 690 2 × 3 × 7 × 11 = 462 2 × 3 × 7 × 13 = 546 2 × 3 × 7 × 17 = 714 2 × 3 × 7 × 19 = 798 2 × 3 × 7 × 23 = 966 2 × 3 × 11 × 13 = 858 2 × 3 × 11 × 17 = 1122 2 × 3 × 11 × 19 = 1254 2 × 3 × 11 × 23 = 1518 2 × 3 × 13 × 17 = 1326 2 × 3 × 13 × 19 = 1482 2 × 3 × 13 × 23 = 1794 2 × 3 × 17 × 19 = 1938 2 × 3 × 17 × 23 = 2346 2 × 3 × 19 × 23 = 2622 2 × 5 × 7 × 11 = 770 2 × 5 × 7 × 13 = 910 . . 5 × 17 × 19 × 23 = 37145 7 × 11 × 13 × 17 = 17017 7 × 11 × 13 × 19 = 19019 7 × 11 × 13 × 23 = 23023 7 × 11 × 17 × 19 = 24871 7 × 11 × 17 × 23 = 30107 7 × 11 × 19 × 23 = 33649 7 × 13 × 17 × 19 = 29393 7 × 13 × 17 × 23 = 35581 7 × 13 × 19 × 23 = 39767 7 × 17 × 19 × 23 = 52003 11 × 13 × 17 × 19 = 46189 11 × 13 × 17 × 23 = 55913 11 × 13 × 19 × 23 = 62491 11 × 17 × 19 × 23 = 81719 13 × 17 × 19 × 23 = 965772 points
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Sorry to see your valuable time was wasted by Barand providing you free professional consulting, custom built code and hand holding. 😣2 points
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Once again we have no idea what the data you are processing looks like. Post the output from this code... echo '<pre>' . var_export($data, 1) . '</pre>';2 points
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the code is doing exactly what it was written to do, build a <tr><td>num</td></tr> for each number. if you want to produce a single <tr></tr>, you would need to add the opening <tr> before the start of the looping and add the closing </tr> after the end of the looping.2 points
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@gizmola With my model you would need to bring the ticket date into the equation SELECT s.id, s.row, s.seat_no FROM seat s LEFT JOIN booking b ON b.seat_id = s.id AND b.screening_id = 35 AND B.ticket_date = '2024-01-03' -- also required WHERE s.screen_id = 1 AND b.id IS NULL; As it is, a screening record states that the movie will be screened at time T each day between X and Y. On reflection, although requiring more rows, it would be better to have a screening record for every individual screening, giving... then your query would work as it is. Alternatively, to get vacant seats for a screening (and only requiring the screening id as input - if the screening id is known then the screen id is also known) you could SELECT s.id, s.row, s.seat_no FROM screening sg JOIN seat s ON sg.screen_id = s.screen_id LEFT JOIN booking b ON b.screening_id = sg.id AND b.seat_id = s.id WHERE sg.id = 35 AND b.id IS NULL
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The main problem is that this $email_to = "email1@website.com", "email2@whatever.com"; isn't going to work. You can't just list multiple email address strings like that. But before that, the other problem is that you're manually trying to send emails. That's almost always bad: emails are hard, and doing it yourself is pretty much always going to go badly. Switch to a library like PHPMailer or SwiftMailer, which will not only be able to do emails properly but also make it easier to do things like add multiple recipients.2 points
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The only MyIsam-only functionality that I can think of is the ability to have a compound primary key EG PRIMARY KEY (year, number) where the 2nd part auto_increments within the first part, so if you have CREATE TABLE `test1` ( `year` int(11) NOT NULL, `number` int(11) NOT NULL AUTO_INCREMENT, PRIMARY KEY (`year`,`number`) ) ENGINE=MyISAM ; mysql> select * from test1; +------+--------+ | year | number | +------+--------+ | 2022 | 1 | | 2022 | 2 | +------+--------+ mysql> insert into test1 (year) values (2022), (2022), (2023), (2023), (2024); mysql> select * from test1; +------+--------+ | year | number | +------+--------+ | 2022 | 1 | | 2022 | 2 | | 2022 | 3 | | 2022 | 4 | | 2023 | 1 | | 2023 | 2 | | 2024 | 1 | +------+--------+2 points
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I've never used it personally but I've heard good things about rector.2 points
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Try $expected = array( '1111', '2222', '2222', '3333' ); $received = array( '1111', '2222', '3333', '3333' ); $cExp = array_count_values($expected); $cRec = array_count_values($received); foreach (array_keys($cExp+$cRec) as $prod) { $e = $cExp[$prod] ?? 0; $r = $cRec[$prod] ?? 0; switch ($e <=>$r) { case -1: $check = 'Over'; break; case 0: $check = 'OK'; break; case 1: $check = 'Under'; break; } echo $prod . " Ordered: $e Received: $r - $check <br>"; } giving 1111 Ordered: 1 Received: 1 - OK 2222 Ordered: 2 Received: 1 - Under 3333 Ordered: 1 Received: 2 - Over2 points
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I agree with Gizmola^. Using a multidimensional array ... $probs = [ 'QB' => [ 'RB' => [ 1 => 11.22, 2 => 3.91, 3 => 0.15 ], 'TE' => [ 1 => 5.17, 2 => 0.80, 3 => 0.00 ], 'QB' => [ 1 => 9.44, 2 => 0.00, 3 => 0.00 ], 'WR' => [ 1 => 10.46, 2 => 8.67, 3 => 4.53 ], 'K' => [ 1 => 3.81, 2 => 0.19, 3 => 0.00 ], 'D' => [ 1 => 2.85, 2 => 0.07, 3 => 0.00 ] ] // rinse and repeat with the other MVPs and FLEXs ]; $lineup = 'QB, WR, WR, RB, K'; $arr = array_map('trim', explode(',', $lineup)); $mvp = array_shift($arr); $counts = array_count_values($arr); $probability = 0; foreach ($counts as $p => $n) { $probability += $probs[$mvp][$p][$n]; } echo '<br>'.$probability; // 23.72 points
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Moving from PHP 5.4.45 to PHP 8 is a significant version upgrade, and it's good that you are considering updating your code accordingly. Here are some points to consider: 1. mysql_query(): The mysql_ functions, including mysql_query(), have been deprecated and removed in later PHP versions. You should replace them with MySQLi or PDO. 2. PDO: While you've updated your code to use PDO, keep in mind that PDO is a database access layer providing a uniform method of access to multiple databases, including MySQL. It should work fine with MySQL 5.7.4-43. It's important to note that updating to PHP 8 and MySQL 5.7 may introduce other compatibility issues or deprecated features in your code. It's recommended to thoroughly test your application in a development environment before making these changes on your live server.2 points
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What does it do when you try it?2 points
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password_hash() and password_verify()2 points
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The radio buttons do not have to be visible, you can hide them and just have a label (which is your image) activate the associated radio. I put together an example. <input type="radio" name="color" value="black" id="black"> <label for="black"> <img src="black.png" alt="black"> </label> You can use CSS to display a border around whichever image is selected, and if you add a class to indication the current one, use a different border to indicate the current item. In my example above, the selected item has a white border, the current has a yellow border.2 points
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Query your existing bookings and create an array... function getBookedSlots($pdo, $wkcomm) { $res = $pdo->prepare("SELECT datum , vreme FROM tehnicki WHERE datum BETWEEN ? AND ? + INTERVAL 6 DAY "); $res->execute([ $wkcomm, $wkcomm ]); $data = []; foreach ($res as $r) { $data[$r['datum']][$r['vreme']] = 1; } return $data; } $bookings [ '2023-07-05'][ '10:00' ] = 1; $bookings [ '2023-07-06'][ '11:30' ] = 1 then if ($d > $today && !isset($bookings[$dt][$ts])) { // clickable if not booked Incorporating into my previous code... <?php $duration = 45; $cleanup = 0; $start = "10:00"; $end = "15:15"; ################################################################################ # Default week commence date # ################################################################################ $d1 = new DateTime(); if ($d1->format('w') <> 1) { $d1->modify('last monday'); } $wkcomm = $_GET['week'] ?? $d1->format('Y-m-d'); $d1 = new DateTime($wkcomm); $week1 = $d1->sub(new DateInterval('P7D'))->format('Y-m-d'); $week2 = $d1->add(new DateInterval('P14D'))->format('Y-m-d'); function getBookedSlots($pdo, $wkcomm) { $res = $pdo->prepare("SELECT datum , vreme FROM tehnicki WHERE datum BETWEEN ? AND ? + INTERVAL 6 DAY "); $res->execute([ $wkcomm, $wkcomm ]); $data = []; foreach ($res as $r) { $data[$r['datum']][$r['vreme']] = 1; } return $data; } function timeslots($duration, $cleanup, $start, $end) { $start = new DateTime($start); $end = new DateTime($end); $duration += $cleanup; $interval = new DateInterval("PT".$duration."M"); return new DatePeriod($start, $interval, $end); } function daysOfWeek($comm) { $d1 = new DateTime($comm); return new DatePeriod($d1, new DateInterval('P1D'), 6); } ?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html" charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <title>Tehnički pregled</title> <script type='text/javascript'> $(function() { // when page has loaded $(".tslot").click(function() { // define click event listener $("#tVreme").val( $(this).data("timeslot") ) $(".tslot").css('background-color', '#fff') $(this).css('background-color', '#ccc') }) }) </script> <style type='text/css'> td, th { padding: 4px; text-align: center; } th { background-color: black; color: white; } td { color: #999; } </style> </head> <body> <section class="header"> <div class="navbar"> <div class="logo"> <img src="images/logo.png"> <span>Tehnički pregled</span> </div> <div class="nav-links" id="navLinks"> <ul> <li><a aria-current="page" href="index.php">Naslovna</a></li> <li><a href="galerija.php">Galerija</a></li> </ul> </div> </div> <div class="headline"> <h1>Tehnički pregled</h1> <p>Odaberite termin i zakažite tehnički pregled svog vozila brzo i jednostavno na našem sajtu.</p> <a href="#termin" class="btn">Zakažite termin</a> </div> </section> <div id="myModal" class="modal"> <div class="login-box"> <p>Zakazivanje termina</p> <form method="POST"> <div class="user-box"> <input name="tIme" type="text" required="Please"> <label>Ime</label> </div> <div class="user-box"> <input name="tPrezime" type="text" required> <label>Prezime</label> </div> <div class="user-box"> <input name="tTelefon" type="text" required> <label>Broj telefona</label> </div> <div class="user-box"> <input name="tVreme" id="tVreme" type="text" required readonly> <label>Datum i vrijeme</label> </div> <br> <input type='submit' value='POŠALJI'> </form> </div> </div> <section class="content" id="termin"> <br><br> <a href='?week=<?=$week1?>'>Previous Week</a>   <a href='?week=<?=$week2?>'>Next Week</a> <br><br> <table> <?php #################################################################### # BUILD THE TABLE OF TIMESLOTS # #################################################################### $days = daysOfWeek($wkcomm); $times = timeslots($duration, $cleanup, $start, $end); $bookings = getBookedSlots($pdo, $wkcomm); // get current bookings $today = new DateTime(); // table headings echo "<tr>"; foreach ($days as $d) { echo '<th>' . $d->format('l<\b\r>d M Y') . '</th>'; } echo "</tr>\n"; // times foreach ($times as $t) { $ts = $t->format('H:i'); echo "<tr>"; foreach ($days as $d) { $dt = $d->format('Y-m-d'); if ($d > $today && !isset($bookings[$dt][$ts])) { // clickable if not booked $dt = $dt . ' ' . $ts; echo "<td><a href='#' class='tslot' data-timeslot='$dt' >$ts h</a><?td>"; } else { echo "<td>$ts</td>"; } } echo "</tr>\n"; } ?> </table> <span>Odaberite željeno vreme.</span> </section> <section class="footer"> <div class="social"> <ul> <li><a href="#"><img src="images/facebook.png" alt=""></a></li> <li><a href="#"><img src="images/twitter.png" alt=""></a></li> <li><a href="#"><img src="images/gmail.png" alt=""></a></li> </ul> </div> <span>Designed by Filip Glišović ©2023. - All rights reserved.</span> </section> </body> </html>2 points
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The redirections are part of the setup for running a command. > and < tie the STDOUT and STDIN streams to a file. This processing is handled by the shell, not the program being executed, so they are not considered part of the programs argument list. Since this is pre-execution setup work as well, the redirection happens before the program is executed, thus happen even if the program execution fails. So, given the command line: zcho It is cold today! > winter.txt The shell would Parse the line into it's components Argument list: ['zcho', 'It', 'is', 'cold', 'today!'] Redirections: STDOUT -> winter.txt Setup STDIN, STDOUT, and STDERR STDIN: tied to the shell's current STDIN stream STDOUT: tied to a new stream created by opening winter.txt for writing (with truncation) STDERR: tied to the shell's current STDERR stream. Extract the first argument and use it as the program/command name (zcho) Attempt to execute the program/command with the arguments given You can confirm the redirection happens first by running your invalid command with STDERR redirection: kicken@web1:~$ zcho It is cold today! 2> error.txt kicken@web1:~$ cat error.txt -bash: zcho: command not found The error message from the zcho command is redirected to the error.txt file rather than displayed in the terminal.2 points
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don't bother with the mysqli extension. it is overly complicated, inconsistent, and in the case of procedural vs OOP statements, has different error responses for the same root problem. instead, use the much simpler, consistent, and more modern PDO extension. in php8+, both the mysqli and PDO extensions use exceptions for errors by default. the line of code that @Barand posted enables exceptions for errors for the msyqli extension. when you use exceptions for database statement errors, php will 'automatically' display or log the raw database errors, via an uncaught exception error. therefore, you can remove any existing error handling logic, since it won't ever get executed upon an error, simplifying the code. you should also name the connection variable as to the type of connection it contains, $mysqli/$pdo. this will let anyone looking at the code know what extension it is using, and also let you search for which code has been converted and which hasn't. you also need to use a prepared query when supplying external, unknown, dynamic values to a query when it gets executed, so that any sql special characters in a value cannot break the sql query syntax, which is how sql injection is accomplished. if you switch to the much simpler PDO extension, after you prepared the query, you can simply supply an array of the input values to the ->execute([...]) call.2 points
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try $res = $pdo->query("SELECT storeid , description FROM merge ORDER BY storeid "); foreach ($res as $r) { $data[$r['storeid']][] = $r['description']; } echo "<table>\n"; foreach ($data as $store =>$prods) { echo "<tr style='vertical-align: top;'><td>$store</td><td>" . join('<br>', $prods) . "</td></tr>\n"; } echo "</table>\n";2 points
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Does the uploads/ directory exist? And does it exist at (I think:) /paypal/uploads?2 points
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None. I played around with ChatGPT a bit when it first came out, to see what it was capable of and just have some fun. I was impressed by it's ability to understand things. I fed it a few functions I've written and asked it to explain what the functions did and write sample code using the functions and it was surprisingly accurate. I don't really see much use for it day-to-day though, so I haven't really used it in quite a while. It does get a lot closer to the "Ask a question, get an answer" goal of search engines, which is why I immediately knew people would be working on that and am not at all surprised to see it happening. Eventually as the models get better and more integrated into search, you'll be able to just type a plain-English (or whatever language) question into google and get an actually answer back instead of having to wade through a list of result pages. From the code side of things, the AI is good enough right now to answer simple syntax / logic errors. Take one of the questions posted here as an example. I told ChatGPT what the error was, what the code was, and to tell me why. It responded: I imagine eventually such a tool will be used to help teach new programmers by either providing better error detection in IDE's or having an virtual mentor they can ask questions and get immediate answers rather than having to either search the web or post on a forum and wait for a response. There are already AI coding assistants that might fulfill this task, I haven't tried any of them personally to know how useful they are.2 points
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Easier with PDO $stmt = $pdo->prepare($sql); $stmt->execute($SearchValues);2 points
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This is almost always the wrong way to do things. You cannot guarantee that this update process will run every, single day. This is Technology - stuff happens. Updating every record is a lot of [unnecessary] work for your database to do and will, almost certainly, lock the entire table, causing other issues. Showing stuff to Users is not the database's job. You'll write an Application that the Users interact with and that will show them your "remaining time". I'm sorry, but why? Users these days want instant responses, not arbitrary and artificially-enforced delays. If you are interested in a particular date & time, then work out when that is and store that. You never need to change it, "in bulk" or at all, Your application can calculate how long it is until "Real Time" catches up with it and show that duration to the User, no matter what they do in the meantime (refreshing, logging off-and-on again, etc. ), and You can easily tell once you have reached it in a SQL query. Keep it Simple ... Regards, Phill W.1 point
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When posting code, please use the button to place the code in a code block. (One copy of the code will suffice)
1 point -
Hey Andou, Thanks for that link. I read it and someone was having the same problem as me. When the guy said he changed the encoding type, I instantly knew what was wrong with it. In movie_desc attribute I had a word in single quotes : ‘Nicky’ - When I was reading the print_r from the array is was rendering that word with question marks on either side. I didn't think much of it - until I read that thread!1 point
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I would add the following suggestion regarding this type of logic if ($row['fk_usertypes_id'] ==1) { echo "Hello 1"; } else { echo "Hello 2"; } Just because the value is not 1, you should not assume the value is 2 - even if those are the only expected values. I've seen multiple production issues where such logic was implemented and unexpected conditions caused impactful bugs. If you only expect the value to be 1 or 2, I would do the following. if ($row['fk_usertypes_id'] == 1) { echo "Hello 1"; } else if (($row['fk_usertypes_id'] == 2) { echo "Hello 2"; } else { //Throw error echo "Unhandled error"; } Although at this point a switch() statement might make more sense.1 point
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It is high time I tipped my cap to phpfreaks, small but mighty. Phpfreaks may be small in population, but the sense and knowledge derived from it are immeasurable. Here, you find gurus who are always ready to solve our problems. Since I joined this forum, I no longer bother flipping to any other place to get my problems solved because phpfreaks is competent. Please do not relent, and keep up the good work. Regards to you all.1 point
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The commonality of most frameworks, is that most of them are built using Object orientated design patterns, typically implementing the "Model View Controller" (MVC) pattern. The model layer, when using a relational database is also an ORM. Symfony (and Laravel) are also frameworks, where the underlying pattern of library design is known as "Dependency Injection" (DI). A big benefit in using Symfony or Laravel, is that they facilitate the use of components as services, and you also can easily write your own classes that can be used as services. A quick example, that is frequently needed would be email services in the application. Typically you add the mailing component library to your project, do a bit of config (and in many cases the basic config gets added for you if you use a symfony recipe package) and at that point actually using the library is trivial. The "Dependency Injection Container" that comes with symfony can make decisions on when to load a library that is required (or not). It is thus important to learn something about DI design for use in your own classes. The originator/project lead of Symfony wrote these articles back in 2009, and I still recommend them to anyone trying to understand Dependency injection as a pattern. Read here -> http://fabien.potencier.org/what-is-dependency-injection.html Once you have more comfort with Oop, and at least a basic appreciation of the existence of OOP design patterns, you will have a lot more comfort using any framework. People who really are just trying to wade through a sophisticated framework without any understanding of how/why, can easily get lost, or have the feeling of not knowing what to do when they encounter an issue. With that said, here's a solid free course in Symfony 6, which if you can follow it, you will give you a good foothold in Symfony: I am a long time Symfony user, going back to symfony 1, and the earliest versions of symfony 2. Symfony 1 was an entirely different framework, and 2 was a very influential ground up rewrite that was intended to be a Dependency Injection framework from the start. Almost every major component from Doctrine to Twig was based upon the existence and design philosophy of some other popular library from the Java world or in the case of Twig, from Python's Jinja and Django projects. In most cases all frameworks start with models (the data persistence in a database) and routing configuration into controllers. Views are "templates". This is where you concentrate your markup code where appropriate. Beyond that, a lot of the really good stuff in Symfony or Laravel is in handling of dependency injection, and in providing for features like "event handling" or "security" or "form building and handling". Really smart people have worked on these frameworks and generally use well known and applicable object oriented design patterns like in the case of Laravel for example, the "Chain of Responsibility" pattern. They don't come right out and say that, but after you study patterns a bit and look at how some of these features work, you may recognize them. You don't need to know any of this to build apps with these frameworks, but you do need to understand basic PHP oop, and interfaces, type hinting, annotations (and now in PHP 8, attributes which have basically replaced the need for annotations) inheritance etc. You MUST get comfortable with Composer. You MUST understand autoloading. You MUST understand how autoloading works with your own classes, and where to put those when you need them. It is possible to do full apps just using the models/controllers/twig templates in the places the symfony manual and tutorials tell you to put them, although this will often lead to lots of "not DRY" code and fat controllers. From a learning standpoint, that's somewhat natural, and nothing to worry about, but eventually you will probably see the problems and seek to remedy them by creating your own classes, which will then be used as services in your controller code. Last but not least, I highly recommend getting a handle on unit tests, and how to write and run them. Test coverage is another area where these frameworks are an amazing value because the developers have worked hard to provide unit tests for their code, so there's a high degree of built in quality. There are lots of frameworks out there, where people did their own take on a framework, and inevitably, they lack unit tests, documentation etc.. One last thing on Symfonycasts. Symfonycasts is a superb resource, started by the long time Symfony documentation lead, Ryan Weaver. The tech built into the tutorial system is fantastic. Full transcription, and code snippets built into everything, so you can alternate between reading or watching as you desire. It costs $25 a month, and if you simply want to learn Symfony in all its sophistication, it's highly worth it, as you can sit down and power through the material in directed fashion. There is a huge amount of material they have covered, but it can also be dense. With the proliferation of javascript UI/UX frameworks like React and Vue, people aren't building apps the same way anymore, and there are a lot more apps where the backend is a REST api, and the frontend is built using a javascript framework, and pulls the data from the backend as a REST client. Ryan has been adding a lot of content in these areas, reflecting the state of the art, and where the professional developer market has been going. I would suggest getting a handle on the traditional first, and then perhaps looking at some of these emerging techs that look to better bridge frontend/backend code. What I wouldn't recommend is buying a year subscription to save some bucks, and then finding out you didn't get enough use out of the subscription. Better to pay the higher monthly and make sure you are getting value out of it. Last but not least, I really like "Programming with GIO"'s youtube channel for foundational state of the art PHP and things like autoloading/composer/core OOP etc. It's free, and as good and probably better than a lot of paid courseware. Symfonycasts and Laracasts both have that material available (sometimes free) but in my opinion you want to spend your time on the stuff that is specific to symfony or laravel rather than the general stuff, should you subscribe to these services in order to advance your education in how to use them.1 point
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The relevant link was in my reply... which linked to ... https://www.php.net/mysqli_query
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I have a note that the reverse engineered underlying code that will work with 8.x is this: SELECT CONCAT('*', UPPER(SHA1(UNHEX(SHA1('password')))));1 point
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There is a slight error in the second foreach loop where you check for extra SKUs. You are comparing the received count with the expected count, but you should be checking if the received count is greater than the expected count. Try replacing the second foreach statement with this: foreach ($received_counts as $sku => $received_count) { if (!isset($expected_counts[$sku])) { $extra = array_merge($extra, array_fill(0, $received_count, $sku)); } elseif ($received_count > $expected_counts[$sku]) { $extra = array_merge($extra, array_fill(0, $received_count - $expected_counts[$sku], $sku)); } }1 point
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The easiest way to use it is set error reporting option when you connect, plus a couple of other options. This will save you from have to test for errors after every PDO method call. const HOST = 'localhost'; const USERNAME = '????'; const PASSWORD = '????'; const DATABASE = '????'; function pdoConnect($dbname=DATABASE) { $db = new PDO("mysql:host=".HOST.";dbname=$dbname;charset=utf8",USERNAME,PASSWORD); $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC); $db->setAttribute(PDO::ATTR_EMULATE_PREPARES, false); return $db; } then, to connect... $pdo = pdoConnect();1 point
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Below is an example of a simple responsive web page with a navigation bar and a form containing input fields. This example uses HTML and CSS. You can incorporate this code into your project and customize it further as needed. <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Responsive Page with Form</title> <style> body { font-family: Arial, sans-serif; margin: 0; padding: 0; box-sizing: border-box; } header { background-color: #333; color: white; text-align: center; padding: 1em; } nav { background-color: #555; overflow: hidden; } nav a { float: left; display: block; color: white; text-align: center; padding: 14px 16px; text-decoration: none; } nav a:hover { background-color: #ddd; color: black; } section { padding: 20px; } form { max-width: 600px; margin: 0 auto; } label { display: block; margin-bottom: 8px; } input, select { width: 100%; padding: 10px; margin-bottom: 16px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; } input[type="submit"] { background-color: #4CAF50; color: white; cursor: pointer; } input[type="submit"]:hover { background-color: #45a049; } </style> </head> <body> <header> <h1>Responsive Page</h1> </header> <nav> <a href="#home">Home</a> <a href="#about">About</a> <a href="#contact">Contact</a> </nav> <section> <h2>Contact Us</h2> <form> <label for="name">Name:</label> <input type="text" id="name" name="name" required> <label for="email">Email:</label> <input type="email" id="email" name="email" required> <label for="message">Message:</label> <textarea id="message" name="message" rows="4" required></textarea> <input type="submit" value="Submit"> </form> </section> </body> </html>1 point
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You don't, because such a thing doesn't make sense to do. How about you describe the problem you think this will solve? Sounds like maybe what you want instead is either a sequence or an identity column.1 point
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No, password_hash handles all the work for you. Including salting. Don't do anything extra.1 point
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What will your code do if there aren't any rows from the query? (I know the answer - I want you to read through it and think about what will happen)1 point
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Of course it showed TVs in each category - that's what you selected. Why is that wrong? - - - I would advise you add a category table and store the catgory id in the product records and not repeat the name in every product of that type. +-------------+ +-----------------+ | product | | category | +-------------+ +-----------------+ | id | +----| id | | name | | | cat_name | | cat_id |>--+ | cat_image | | code | | cat_price | | price | +-----------------+ | image | +-------------+1 point
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Here's one way $student_scores = [ [ 'name' => 'Student A', 'score' => 68, 'pos' => '' ], [ 'name' => 'Student B', 'score' => 52, 'pos' => '' ], [ 'name' => 'Student C', 'score' => 73, 'pos' => '' ], [ 'name' => 'Student D', 'score' => 80, 'pos' => '' ], [ 'name' => 'Student E', 'score' => 56, 'pos' => '' ], [ 'name' => 'Student F', 'score' => 77, 'pos' => '' ], [ 'name' => 'Student G', 'score' => 73, 'pos' => '' ], [ 'name' => 'Student H', 'score' => 49, 'pos' => '' ], [ 'name' => 'Student I', 'score' => 88, 'pos' => '' ], [ 'name' => 'Student J', 'score' => 90, 'pos' => '' ] ]; $scores = array_column($student_scores, 'score'); rsort($scores); foreach ($student_scores as &$s) { $s['pos'] = array_search($s['score'], $scores) + 1; } // sort scores by position uasort($student_scores, fn($a, $b) => $a['pos']<=> $b['pos']); // show results echo '<pre>' . print_r($student_scores, 1) . '</pre>'; giving Array ( [9] => Array ( [name] => Student J [score] => 90 [pos] => 1 ) [8] => Array ( [name] => Student I [score] => 88 [pos] => 2 ) [3] => Array ( [name] => Student D [score] => 80 [pos] => 3 ) [5] => Array ( [name] => Student F [score] => 77 [pos] => 4 ) [2] => Array ( [name] => Student C [score] => 73 [pos] => 5 ) [6] => Array ( [name] => Student G [score] => 73 [pos] => 5 ) [0] => Array ( [name] => Student A [score] => 68 [pos] => 7 ) [4] => Array ( [name] => Student E [score] => 56 [pos] => 8 ) [1] => Array ( [name] => Student B [score] => 52 [pos] => 9 ) [7] => Array ( [name] => Student H [score] => 49 [pos] => 10 ) )1 point
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Add some extra checks in to prevent the rendering of dates in the table if they are in the past. This should work: <section class="content" id="termin"> <?php $dt = new DateTime; $thisWeek = $dt->format('W'); $thisYear = $dt->format('o'); if (isset($_GET['year']) && $_GET['year'] >= $thisYear && isset($_GET['week']) && $_GET['week'] >= $thisWeek ) { $dt->setISODate($_GET['year'], $_GET['week']); } else { $dt->setISODate($dt->format('o'), $dt->format('W')); } $year = $dt->format('o'); $week = $dt->format('W'); ?>1 point
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What you downloaded is the source code of the software. You need to compile it to get an actual program you can use. You can do that relatively easily on Linux since that's the environment it was designed for. Whether it can be done and how difficult it would be to do on Windows is unknown. Something like MinGW might help. A .md file is just a text file. Any text editor will open and display it just fine. It might not open with a simple double-click as the .md extension probably is not registered, but you can always open the editor and use it's file->open command (or just rename the file to .txt and double-click).1 point
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Huh? What is 'mountain safe' or 'mountain good'? Never heard of those terms on a forum. As for the ar function: What's the point? You have a $_POST array already so why do you need to make a new array? And then you create the em function just to find out if a value is empty. Why does one need a function for that when PHP gives the empty function to use already? And your bh function. Not at all sure what you are trying to do but what you have is going to simply create a single element array (?) with a key and a value that you already know and that you could have put into an array on your own. This function doesn't do anything. And it also creates an extra array just so you can return it. Why? And the bb function. I won't even discuss that one. Nor the commented code.1 point
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Example data TABLE: client TABLE: project +----+-----------+----------+ +----+---------------+-----------+------------+ | id | firstname | lastname | | id | project_name | client_id | start_date | +----+-----------+----------+ +----+---------------+-----------+------------+ | 1 | Scott | Chegg | | 1 | Project Alpha | 4 | 2022-12-01 | | 2 | Laura | Norder | | 2 | Proect Beta | 2 | 2023-01-15 | | 3 | Tom | DiCanari | | 3 | Project Gamma | 4 | 2023-03-01 | | 4 | S | Tonin | | 4 | Project Delta | 1 | 2023-03-20 | +----+-----------+----------+ +----+---------------+-----------+------------+ Query SELECT project_name , start_date , CONCAT(c.firstname, ' ', c.lastname) as client FROM project p JOIN client c ON p.client_id = c.id ORDER BY client, start_date; +---------------+------------+--------------+ | project_name | start_date | client | +---------------+------------+--------------+ | Proect Beta | 2023-01-15 | Laura Norder | | Project Alpha | 2022-12-01 | S Tonin | | Project Gamma | 2023-03-01 | S Tonin | | Project Delta | 2023-03-20 | Scott Chegg | +---------------+------------+--------------+ Now change the first name of client 4 and re-query UPDATE client SET firstname = 'Sarah' WHERE id = 4; SELECT project_name , start_date , CONCAT(c.firstname, ' ', c.lastname) as client FROM project p JOIN client c ON p.client_id = c.id ORDER BY client, start_date; +---------------+------------+--------------+ | project_name | start_date | client | +---------------+------------+--------------+ | Proect Beta | 2023-01-15 | Laura Norder | | Project Alpha | 2022-12-01 | Sarah Tonin | | Project Gamma | 2023-03-01 | Sarah Tonin | | Project Delta | 2023-03-20 | Scott Chegg | +---------------+------------+--------------+1 point
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JQuery It makes life a lot easier when using javascript. <script type='text/javascript'> $(function() { $(".circ3").mouseover(function() { // handle mouseover event on elements with class "circ3" $(this).css("fill", "red") // $(this) is the target element - change its fill color $(this).css("fill-opacity", "1") // - change its opacity $("#grp1").removeClass('txt1').addClass('txt2') // change class of element with id = "grp1" }) $(".circ3").mouseout(function() { $(this).css("fill", "blue") $(this).css("fill-opacity", "0.3") $("#grp1").removeClass('txt2').addClass('txt1') }) }) </script>1 point
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"Tag" is still fine. It's not like that term has died off or anything. And it applies to all... well, to all tags... not just certain ones. "META tag", "HTML tag", "NAV tag", whatever. "Element" is the other one in common usage. Means the same thing. Probably a bit more proper. Maybe the word you're looking for is "semantic"? Because the idea of those new tags/elements is that they have a semantic meaning: while DIV is just whatever, HEADER is specifically for "a header", and NAV is specifically for navigation, and such. Makes it easier for automated processes (like search engines) to analyze a page.1 point
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Q1. yes, it needs a stored result to count the rows. Q2. yes, it clears the stored result from the internal buffer freeing memory. It's good practice to always clean up after yourself. Q3. either use mysqli_* or PDO, most people use PDO for its simple API. PDO has no pdo_* functions, only it's Object Oriented interface. Q4. bad, but not in the way of ugly or "newbie" but because it can be exploited by hackers; it will be hard to maintain (lots of duplicate code, weird indents, no separation between HTML and PHP, ..); using die() in a script is not good UX, the user can't get back to the homepage or try another search;1 point
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You're generally not going to find such specific examples in a manual. You need to use the documentation and examples given to learn the components so you can then put them together as needed to accomplish your task. Perhaps you should lookup what getAttribute does. You might also need to read up on how the DOM (the link talks JavaScript, but the interfaces work the same in any language) works in general if you want to continue using DOMDocument. Spend some time reading the documentation for DOMDocument and some about the DOM and you should be able to figure out where you went wrong in your above attempts.1 point
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Here's an example to get you started <?php function svgHead($txt) { $svg = "<svg class='longhead' width='150' height='100'> <style type='text/css'> .headtext { font-size: 11pt; fill: orange; } </style> <path d='M 0 100 l 40 0 l 100 -100 l -40 0 Z' fill='black' /> <text x='35' y='95' class='headtext' transform='rotate(-45, 35, 95 )'>$txt</text> </svg> "; return $svg; } ?> <style type='text/css'> div.outer { border: 1px solid black; height: 105px; } svg.longhead { margin: -50px; position: relative; top: 35px; left: 50px; } </style> <div class='outer'> <?= svgHead('Long Heading 1')?> <?= svgHead('Long Heading 2')?> <?= svgHead('Long Heading 3')?> <?= svgHead('Long Heading 4')?> <?= svgHead('Long Heading 5')?> <?= svgHead('Long Heading 6')?> </div> output
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