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    <p>Isn't it better to group the information by student?</p> <p>Example:</p> <p><pre><code>&lt;form...> &lt;? foreach ($students as $id => $info) : ?> &lt;input type="text" name="fname;&lt;=$id;?>" value="&lt;?=$info['fname'];?>" /> &lt;input type="text" name="lname;&lt;=$id;?>" value="&lt;?=$info['lname'];?>" /> etc &lt;? endforeach ?> &lt;/form> </pre></code></p> <p>(I'm using PHP short tags here) <br /><br /> Then, when you process the form: <br /><br /></p> <pre><code>$update = array(); foreach ($_POST as $key => $value) { // key will look like: fname;1, fname;2, etc // so, split it on the ; sign to separate the field name from the student's id $data = explode(';',$key); // result: // $data[0] = fname, lname, etc // $data[1] = 1, 2, etc // you can add some checks to make sure that this field is valid // and that the id is in fact a valid id (number, > 0, etc) // sanitize data (however you want, just an example) $value = mysql_real_escape_string(trim($value)); // now add it to the update array, grouped by student id $update[$data[1]][$data[0]] = $value; // result: // $update[1]['fname'] = 'First name student 1'; // $update[1]['lname'] = 'Last name student 1'; // $update[2]['fname'] = 'First name student 2'; // $update[2]['lname'] = 'Last name student 2'; // etc } </code></pre> <p>After that, go through the update array:</p> <pre><code>foreach ($update as $id => $info) { $sql = "UPDATE students SET fname = '".$info['fname']."', lname = '".$info['lname']."' WHERE id = $id"; mysql_query($sql); } </code></pre>
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    1. CO+1 well explained
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