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POseat reservation not working
 

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  1. POseat reservation not working
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    <p>I've been doing a lot of research but I guess I still didn't find the answers. This is a seat reservation and I'm not so good in php and mysql. So here's my code: </p> <p>reservation.php code:</p> <pre><code>&lt;?php mysql_connect("localhost","root","") or die (mysql_error()); mysql_select_db('seat_reservation') or die (mysql_error()); $insert = mysql_query("INSERT INTO reservation (chair_status, room_id, chair_number) VALUES (0, 400, 05)"); ?&gt; &lt;/td&gt; &lt;div id="popupContact"&gt; &lt;a id="popupContactClose"&gt;x&lt;/a&gt; &lt;center&gt;&lt;form method = "POST" action="reserve.php"&gt; &lt;?php $query = mysql_query("SELECT chair_status FROM reservation WHERE room_id = '400' AND chair_number = '05'"); while($row = mysql_fetch_array($query)) { $_SESSION['roomno'] = $row['room_id']; $_SESSION['chairnum'] = $row['chair_number']; } ?&gt; </code></pre> <p>reserve.php code:</p> <pre><code>&lt;?php $name = $_POST['student_name']; $stud_id = $_POST['stud_id']; $room_id = $_SESSION['roomno']; $chair_num = $_SESSION['chairnum']; mysql_connect("localhost", "root", "") or die (mysql_error()); mysql_select_db('seat_reservation') or die (mysql_error()); $query = mysql_query("SELECT chair_status FROM reservation WHERE room_id = '$room_id' AND chair_number = '$chair_num'"); if($query == 0) { $insert = mysql_query("UPDATE reservation SET chair_status = 1, student_name = '$name', stud_id = '$stud_id' WHERE room_id = '$room_id' AND chair_number = '$chair_num'"); } else die ("Sorry, seat taken! &lt;br /&gt;Redirecting...&lt;meta http-equiv='refresh' content=2;reservation.php&gt;"); ?&gt; </code></pre> <p>my problem is that, when I reserve a seat, it tells me that the seat is taken even if the chair_status field is 0. When I checked the DB, it successfully inserted with chair_status of 0. I don't know which part is wrong. I really need your help, thank you!</p>
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    1. USj08691
    1. USMonica Negapatan
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      1. VTApproveEditSuggestion
    1. COfor starters, you don't escape your SQL queries. and second of all, you still use mysql_
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      1. USCole Johnson
    2. CO@ColeJohnson That comment is supremely unhelpful unless you provide the asker context on what you're talking about. Not everyone is aware of PDO or MySQLi, and the planned, [though not yet documented in the manual](http://us.php.net/manual/en/ref.mysql.php) deprecations of the `mysql_*()` functions
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      1. USMichael Berkowski
 

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