Checkbox database deleting using phpmysql - php

Question

Can any one tell what is happening with my code? I got this code from web but its not working; when I press delete its not deleting the database. Can you help me?
<?php
$host="localhost"; // Host name
$username="root"; // Mysql username
$password=""; // Mysql password
$db_name="comment";
$tbl_name="members";
mysql_connect($host, $username, $password)or die("cannot connect");
mysql_select_db($db_name)or die("cannot select DB");
$sql="SELECT * FROM $tbl_name";
$result=mysql_query($sql);
$count=mysql_num_rows($result);
?>
<table width="400" border="0" cellspacing="1" cellpadding="0">
<tr><td><form name="form1" method="post" action="">
<table width="400" border="0" cellpadding="3" cellspacing="1" bgcolor="#CCCCCC"><tr>
<td bgcolor="#FFFFFF"> </td>
<td colspan="4" bgcolor="#FFFFFF"><strong>Delete multiple rows in mysql</strong> </td></tr>
<tr><td align="center" bgcolor="#FFFFFF">#</td>
<td align="center" bgcolor="#FFFFFF"><strong>Id</strong></td>
< td align="center" bgcolor="#FFFFFF"><strong>Name</strong></td>
<td align="center" bgcolor="#FFFFFF"><strong>Lastname</strong></td>
<td align="center" bgcolor="#FFFFFF"><strong>Email</strong></td></tr>
<?php while($rows=mysql_fetch_array($result, MYSQL_ASSOC)){ ?>
<tr><td align="center" bgcolor="#FFFFFF">
<input name="checkbox[]" type="checkbox" id="checkbox[]" value="<? echo $rows['id']; ?>">
</td><td bgcolor="#FFFFFF"><?php echo $rows['id']; ?></td><td bgcolor="#FFFFFF">
<?php echo $rows['firstname']; ?></td><td bgcolor="#FFFFFF"><?php echo $rows['lastname']; ?></td>
<td bgcolor="#FFFFFF"><?php echo $rows['passwd']; ?>
</td></tr>
<?php } ?>
<tr><td colspan="5" align="center" bgcolor="#FFFFFF">
<input name="delete" type="submit" id="delete" value="Delete"></td></tr>
</table></form></td></tr></table>
<?php
$checkbox = $_POST['checkbox'];
$delete = $_POST['delete'];
if(isset($delete)){
for($i=0;$i<$count;$i++){
$del_id = $checkbox[$i];
$sql = "DELETE FROM $tbl_name WHERE id='$del_id'";
$result = mysql_query($sql);
}
if($result){echo "<meta http-equiv=\"refresh\" content=\"0;URL=delete.php\">";}}
mysql_close();
?>

Answer 1

Please correct the form action to work the code
<?php
$host="localhost"; // Host name
$username="root"; // Mysql username
$password=""; // Mysql password
$db_name="comment";
$tbl_name="members";
mysql_connect($host, $username, $password)or die("cannot connect");
mysql_select_db($db_name)or die("cannot select DB");
$sql="SELECT * FROM $tbl_name";
$result=mysql_query($sql);
$count=mysql_num_rows($result);
?>
<table width="400" border="0" cellspacing="1" cellpadding="0">
<tr>
<td>
<form name="form1" method="post" action="<? $_SERVER["PHP_SELF"]; ?>">
<table width="400" border="0" cellpadding="3" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<td bgcolor="#FFFFFF"> </td>
<td colspan="4" bgcolor="#FFFFFF">
<strong>Delete multiple rows in mysql</strong>
</td>
</tr>
<tr>
<td align="center" bgcolor="#FFFFFF">#</td>
<td align="center" bgcolor="#FFFFFF">
<strong>Id</strong>
</td>
<td align="center" bgcolor="#FFFFFF">
<strong>Name</strong>
</td>
<td align="center" bgcolor="#FFFFFF">
<strong>Lastname</strong>
</td>
<td align="center" bgcolor="#FFFFFF">
<strong>Email</strong>
</td>
</tr>
<?php while($rows=mysql_fetch_array($result, MYSQL_ASSOC)){ ?>
<tr>
<td align="center" bgcolor="#FFFFFF">
<input name="checkbox[<? echo $rows['id']; ?>]" type="checkbox" value="<? echo $rows['id']; ?>">
</td>
<td bgcolor="#FFFFFF">
<?php echo $rows['id']; ?>
</td>
<td bgcolor="#FFFFFF">
<?php echo $rows['firstname']; ?>
</td>
<td bgcolor="#FFFFFF">
<?php echo $rows['lastname']; ?>
</td>
<td bgcolor="#FFFFFF">
<?php echo $rows['passwd']; ?>
</td>
</tr>
<?php } ?>
<tr>
<td colspan="5" align="center" bgcolor="#FFFFFF">
<input name="delete" type="submit" id="delete" value="Delete">
</td>
</tr>
</table>
</form>
</td>
</tr>
</table>
<?php
$delete = $_POST['delete'];
if(isset($delete)){
$t = $_POST;
foreach($t as $param){
$t1 = $param;
if(is_array($t1)){
foreach($t1 as $param2){
echo $param2;
echo "<br>";
//Here execute delete query
}
}
}
}
?>