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POHow to check whether dropbox item is selected?
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Id
6769356
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2011-07-20T22:35:20.460
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2011-07-21T12:57:24.760
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Body
I have a mysql database with two tables: <pre><code>table1 (id, name, emailid) table2 (id, email) </code></pre> <ul> <li><code>emailid</code> is a relationship to <code>table2.id</code></li> </ul> I'm trying to make an html form that lists the contents of table1 with a dropdown box for the user to select the email field. The email field is populated with <code><options></code> from <code>table2</code>. My question is: how do I check what value is already selected for <code>emailid</code> and make that the already selected item in the dropbox when the form loads with <code>selected="selected"</code>? I've gotten one solution to work already but I don't think it is the proper way to do it and was looking for the best practices method. The way I am currently doing it will only work with one item pulled from <code>table1</code> but not if there are more than 1. Here is my code so far: This is where I get the data to make the form: <pre><code><?php $sql = "SELECT table1.id as table1id, table1.name, table2.id as table2id FROM table1 INNER JOIN table2 ON table1.emailid = table2.id WHERE table1.id = {$id}"; $result = mysqli_query($link, $sql); $row = mysqli_fetch_array($result); $items1 = array('table1id' => $row['table1id'] 'name' => $row['table1.name'] 'table2id' => $row['table2id']); $sql = "SELECT id, email FROM table2"; $result = mysqli_query($link, $sql); $row = mysqli_fetch_array($result); while ($row = mysqli_fetch_array($result)) { $items2[] = array('id' => $row['id'], 'email' => $row['email'], 'selected' => ($row['id'] == $items1['table2id']) ? ' selected="selected" ' : ''); } ?> </code></pre> This is my HTML: <pre><code><tr> <td><?php echo $items1['name']; ?></td> <td><input type="hidden" name="table1id" value="<?php echo $items1['table1id']; ?>" /> <?php echo $items1['table1id']; ?></td> <td> <select name="email"> <?php foreach ($items2 as $item2): ?> <option value="<?php echo $item2['id']; ?>"<?php echo $item2['selected']; ?>> <?php echo $item2['email']; ?></option> <?php endforeach; ?> </select> </td> </tr> </code></pre> This is how the form is updated: <pre><code><?php $id = mysql_real_escape_string($_POST['table1id']); $email = mysql_real_escape_string($_POST['email']); $sql = "UPDATE table1 SET emailid = {$email} WHERE id = {$id}"; ?> </code></pre>
Tags
<php><mysql><html><forms>
Title
How to check whether dropbox item is selected?
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1. USRyan Mortier
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