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  1. PO
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    <p>Your query need to be modified as bellow.</p> <pre><code>mysql_query("UPDATE user SET username = '" .$_POST[nusername] . "' , password = ' " .$_POST[npassword] . "', name = '" . $_POST[nname] . " ', surname = '" . $_POST[nsurname]', role = '$_POST[nrole] . "' WHERE username='" . $_POST[us] . "'"); </code></pre> <p>Also you are open for the SQL Injection attacks. So you better use <code>mysql_real_escape_string()</code> function as well.</p> <p><a href="http://php.net/manual/en/function.mysql-real-escape-string.php" rel="nofollow">http://php.net/manual/en/function.mysql-real-escape-string.php</a></p> <p>Also I would like to suggest you few steps to over come this kind of issue. This is just an example.</p> <p>Step 1 </p> <p>When you need a SQL statement in your PHP code. You better write it in your MySQL tool first and test it with sample values.</p> <pre><code>UPDATE subscriber SET Subscriber_Name = 'Test' , Email = 'test@test.com' WHERE Subscriber_ID = '2' ; </code></pre> <p>Step 2:</p> <p>If the query works fine then copy it to php. And replace values with <code>mysql_real_escape_string()</code> support.</p> <pre><code>$sql = "UPDATE subscriber SET Subscriber_Name = '" . mysql_real_escape_string($_POST['name']) . "' , Email = '" . mysql_real_escape_string($_POST['email']) . "' WHERE Subscriber_ID = '" . mysql_real_escape_string($_POST['id']) . "' ;" </code></pre> <p>Step 3:</p> <p>Execute your query.</p> <pre><code>$result = mysql_query($sql); </code></pre> <p>Step 4 : </p> <p>You can see any if there any errors available.</p> <pre><code>echo mysql_error(); </code></pre> <p><strong>EDIT:</strong></p> <p>Answer for you Question 2 "How can I achieve already filled boxes in the html file, with the right values, if I choose a certain username?" could be like this.</p> <p>First you have to write a select statement and get whatever data you want. Ex.</p> <pre><code>$sql = "SELECT user.username, user.name, user.surname , user.role FROM USER WHERE user.username = '" . mysql_real_escape_string($_POST[us]) . "'"; $result = mysql_query($sql, $link) or die(mysql_error()); $row = mysql_fetch_assoc($result); </code></pre> <p>Then put your HTML code. Ex:</p> <pre><code>&lt;form action="edit_user.php" method="post"&gt; &lt;p&gt;Username&lt;input type="text"name="nusername" size="40" value="&lt;?php echo $row['username'];?&gt;"&gt;&lt;/p&gt; &lt;p&gt;Password&lt;input type="password"name="npassword" size="40"&gt;&lt;/p&gt; &lt;p&gt;Name&lt;input type="text"name="nname" size="40" value="&lt;?php echo $row['name'];?&gt;"&gt;&lt;/p&gt; &lt;p&gt;Surname&lt;input type="text"name="nsurname" size="40" value="&lt;?php echo $row['surname'];?&gt;"&gt;&lt;/p&gt; &lt;p&gt;Role&lt;input type="text"name="nrole" size="40" value="&lt;?php echo $row['role'];?&gt;"&gt;&lt;/p&gt; &lt;p&gt;&lt;input type="submit&gt;&lt;/p&gt; &lt;/form&gt; </code></pre>
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    1. POUpdate a row mysql in php
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    1. PTAnswer
    1. USPrasad Rajapaksha
    1. USPrasad Rajapaksha
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    1. COI did what you proposed but it still doesn't do anything...Is there any possibility that there is problem with the html part, from which the php file takes the values?
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      1. PO
      1. USfelice
    2. CO<form action="edit_user.php" method="post"> <p>Username<input type="text"name="nusername" size="40"></p> <p>Password<input type="password"name="npassword" size="40"></p> <p>Name<input type="text"name="nname" size="40"></p> <p>Surname<input type="text"name="nsurname" size="40"></p> <p>Role<input type="text"name="nrole" size="40"></p> <p><input type="submit></p> </form>
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      1. PO
      1. USfelice
    3. COPlease edit your question with this as well. I can't understand this in comment sections because of it's formatting.
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      1. PO
      1. USPrasad Rajapaksha
 

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