Edit sql data in php page - php

Question

I need to edit my database table using submitted data.
This is the form:
mysql_query("set names 'utf8'");
$query = "SELECT * FROM sec1octa";
$result = mysql_query($query);
?>
<div align="center">
<form method="get" action="edit_data.php">
<table width="104" border="1" class="center1">
<tr>
<th width="94">first</th>
<th width="94">second</th>
<th width="94">status</th>
</tr>
<tr>
<?php
if (mysql_num_rows($result) > 0) {
while ($row = mysql_fetch_array($result)) {
?>
<tr>
<td><input type="text" name="id" value="<?php echo $row ['stu_no']; ?> " size=10></td>
<td><input type="text" name="name" value="<?php echo $row ['stu_name']; ?> " size=10></td>
<td><?php
echo '<select name="status">'; {
echo '<option value="open">'.$row['stu_status'].'</option>';
echo '<option value="close">'.prevent.'</option>';
}
echo '</select>';
?></td>
</tr>
<?php
}
}
?>
</tr>
</table>
<input type="submit" name="submit" value="done" />
</form>
The problem is in the edit_data.php page.
I can't UPDATE.
I use this code but it's not working.
require_once('../Connections/config.php');
$id= $_GET['id'];
$status= $_GET['status'];
$query= mysql_query("UPDATE `goh`.`sec1octa` SET `stu_status` = '$status'
WHERE stu_no='".$id."'") or die (mysql_error ());
if($query){echo $status ."done ";}

Answer 1

The reason you are only getting the last values in your edit_data.php $_GET is because you are not setting the input/select names as arrays.
<input type="text" name="id" value="some_stu_no">
is happening over and over and over and every new one overwrites the previous.
Instead, you should use:
<input type="text" name="id[]" value="some_stu_no">
This will allow you to pass multiple id's in a single form submission.
Your form:
<form method="POST" action="edit_data.php">
....
echo "<tr>";
echo "<th>id</th>";
echo "<th>name</th>";
echo "<th>status</th>";
echo "</tr>";
if(mysql_num_rows($result)>0){
while($row=mysql_fetch_array($result)){
echo "<tr>";
echo "<td><input type=\"text\" name=\"id[]\" value=\"{$row['stu_no']}\" size=\"10\"></td>";
echo "<td>{$row['stu_name']}</td>";
echo "<td>";
echo "<select name=\"status[]\">"; // I don't like your option set up here, but I don't fully understand it either.
echo "<option value=\"open\">{$row['stu_status']}</option>";
echo "<option value=\"close\">.prevent.</option>";
echo "</select>";
echo "</td>";
echo "</tr>";
}
}
....
<input type="submit" value="Submit All">
</form>
edit_data.php
// create a mysqli connection called $db
if(isset($_POST['id'])){
$tally=0;
// build all queries for the batch
foreach($_POST['id'] as $index=>$id){
$queries[]="UPDATE `goh`.`sec1octa` SET `stu_status`='".mysqli_real_escape_string($db,$_POST['status'][$index])."' WHERE `stu_no`='".mysqli_real_escape_string($db,$id)."'";
}
// run all queries
if(mysqli_multi_query($db,implode(';',$queries)){
do{
$tally+=mysqli_affected_rows($db);
} while(mysqli_more_results($db) && mysqli_next_result($db));
}
// assess the outcome
if($error_mess=mysqli_error($db)){
echo "Syntax Error: $error_mess";
}else{
echo "$tally row",($tally!=1?"s":"")," updated";
}
mysqli_close($con);
}