StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POKey Generator without storing in database
primarykey
Id
18487371
data
AcceptedAnswerId
18487630
AnswerCount
2
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2013-08-28T12:04:14.577
FavoriteCount
1
LastActivityDate
2013-08-28T12:21:12.970
LastEditDate
2013-08-28T12:10:20.757
LastEditorUserId
2685722
OwnerUserId
2685722
ParentId
0
PostTypeId
1
Score
0
ViewCount
345
LastEditorDisplayName
text
Body
<p>My code creates random <code>key</code> and stores it in the <code>database</code>on button click,<code>keygen</code> is the button name, <code>if</code> the user/customer already has the key it gets the <code>key</code> from the database in a text box on click <code>else</code> it generates a new <code>key</code> and stores it in the <code>database</code> . Is there a way i can achieve this without storing the <code>key</code> in the database and get the same key for a particular user/customer each time. </p> <p>Code:</p> <pre><code><?php include('session.php'); $result = mysql_query("SELECT * FROM customer WHERE customer_no = '$customer_no'"); $row = mysql_fetch_array($result); if (isset($_POST['keygen'])){ $customer_no = $_POST['customer_no']; $customer_no = mysql_real_escape_string($customer_no); $result = mysql_query("SELECT * FROM customer WHERE customer_no = '$customer_no'"); while ($row = mysql_fetch_assoc($result)) { $keyString = $row['key']; if($keyString == ""){ $keyString = mysql_real_escape_string($keyString); $query = mysql_query("UPDATE customer SET `key` = '$keyString' WHERE customer_no = '$customer_no'"); } else{ $keyString = $row['key']; }}} function generateRandomString($length = 10) { $characters = '23456789ABCDEFGHJKMNPQRSTUVWXYZ'; $randomString = ''; for ($i = 0; $i < $length; $i++) { $randomString .= $characters[rand(0, strlen($characters) - 1)]; } return $randomString; } ?> </code></pre> <p>My HTML is,</p> <pre><code><div id="content" class="box2"> <div class="login"> <form action="" method="post" style="margin:12px;"> <table class="nostyle"> <tr> <td align="center"> <label style="font-size:16px;"><strong>Customer ID: </strong></label> <select name="customer_no"> <?php $result_customer= mysql_query('SELECT customer_no FROM customer ORDER BY customer_no'); ?> <?php while($row_customer= mysql_fetch_assoc($result_customer)) { ?> <option <?php if ($row_customer['customer_no']=='') { ?> selected="selected"<?php } ?>> <?php echo htmlspecialchars($row_customer['customer_no']); ?> </option> <?php } ?> </select> </td> </tr> <tr> <td align="center"><label style="font-size:16px;"><br /><strong>Register Key: </strong> </label> <input type="text" id="key" class="input-text" name="key" size="20" align="middle" value = " <?=$row["key"];?>"></td> </tr> <td align="center"><br /><input type="submit" id="keygen" class="input-submit" name="keygen" value="Generate" onclick=""/> </td> </tr> </table> </form> </div> </div> </code></pre> <p>Please help,I'm a newbie.</p>
Tags
<php><random><key-generator>
Title
Key Generator without storing in database
singulars
PostAcceptedAnswerId
1. PO
  singulars
  PostTypePostTypeId
  PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USstash_man
UserOwnerUserId
1. USstash_man
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
  singulars
  PostTypePostTypeId
  PTAnswer
2. PO
  singulars
  PostTypePostTypeId
  PTAnswer
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.