PHP - Problems With My While Loop And Also Cant Delete Its Corresponding Rows On A Click Of The Buttton Delete

I have a table with several fields, one of which is an amount of days after which the row will be deleted. Every time the script is run, I want to check for old entries and delete them. How would I do this?

Hey Guys. I have tried looking this up on Google but the only answers I am finding is using there where clause. I wanted to know if I can update or delete a range of rows like from id 100-200. Is there a way to do that? Thanks!

Hello all, im new to this forum, im a noobie, just started coding about 3 weeks ago, don't be too hard on me.   My question is I wan't to check for challenges a user's team posted that have not been excepted after 1 day, then auto refund the user's team back there credits, and then also delete all the challenges. So far here is my code.

//Delete all matches not accepted after 1 day
$arrayin = array();
$autorefund = mysql_query("SELECT * FROM `challenges` WHERE `a` = " . $team['id'] . " "
. "AND `accepted` = 0 AND `completed` = 0 AND `chtype` = 1 AND (`expires` < " . ((int) time()) . ")");
if (mysql_num_rows($autorefund) > 0) {
while ($autorefund = mysql_fetch_assoc($autorefund)) {
$arrayin[] = $autorefund['id'];
mysql_query("UPDATE `teams` SET `balance` = `balance` + " . $autorefund['credits'] . " "
. "WHERE `id` IN (" . mysql_real_escape_string(implode(',', $arrayin)) . ")");
mysql_query("DELETE FROM `challenges` WHERE `a` IN "
. "(" . mysql_real_escape_string(implode(',', $arrayin)) . ") "
. "AND `accepted` = 0 AND `completed` = 0 AND `chtype` = 1 "
. "AND (`expires` < " . ((int) time()) . ")");
}
}

FYI here is the code i had, it works fine, however it will only delete 1 challenge per team, not all of there challenges. 

$autorefund   = mysql_query("SELECT * FROM `challenges` WHERE `a` = " . $team['id'] . " AND  `accepted` = 0 AND `completed` = 0 AND `chtype` = 1 AND (`expires` < ".((int)time()).")");
if (mysql_num_rows($autorefund) > 0) {
while ($autorefund  = mysql_fetch_assoc($autorefund)) {
if ($autorefund['accepted'] == 0 and $autorefund['expires'] < time()) {
mysql_query("UPDATE `teams` SET `balance` =  `balance` + " . $autorefund['credits'] . " WHERE `id` = " . $team['id'] . "");
mysql_query("DELETE FROM `challenges` WHERE `a` = " . $team['id'] . " AND  `accepted` = 0 AND `completed` = 0 AND `chtype` = 1 AND (`expires` < ".((int)time())."));
}
}
}

I inherited this script, its using deprecated statements, i know im not skilled to rewrite the entire site to use prepared statements.

Hi,   I wish to find out is there any possible that I can delete some data inside my php website but inside my sql database, the record will still at there?   Thank you.

I am trying to delete records across 3 tables but my code does not work.

Code: [Select]


$query = ("SELECT `propertyref` FROM `feed_property` WHERE `status` = 'Sold' ")or die(mysql_error());
   $result = mysql_query($query);
   
 if (isset($result)) {   
     while ($row = mysql_fetch_array($result)):
     $ref1 = mysql_real_escape_string($row['propertyref']);
 
   
$query1 = ("DELETE FROM `feed_property`, `feed_images`, `feed_characteristics`\n"
    . "USING `feed_property` INNER JOIN `feed_images` INNER JOIN `feed_characteristics`\n"
    . "WHERE feed_property.propertyref = '$ref1'\n"
    . " AND feed_images.propertyref = feed_property.propertyref\n"
    . " AND feed_characteristics.propertyref = feed_property.propertyref; ")or die(mysql_error());
   
   
   
   

echo $query1;
endwhile;


   
if(!mysql_query($query1)){
  echo '<h1 style="color: red;">Error</h1><p>', mysql_error(), '</p>';
}


else
{

  echo '<h1 style="color: red;">Properties have been removed from the database</h1>';
}
}


Query1 echos as:

Code: [Select]
DELETE FROM `feed_property`, `feed_images`, `feed_characteristics` USING `feed_property` INNER JOIN `feed_images` INNER JOIN `feed_characteristics` WHERE feed_property.propertyref = 'abc1' AND feed_images.propertyref = feed_property.propertyref AND feed_characteristics.propertyref = feed_property.propertyref;
DELETE FROM `feed_property`, `feed_images`, `feed_characteristics` USING `feed_property` INNER JOIN `feed_images` INNER JOIN `feed_characteristics` WHERE feed_property.propertyref = 'abc2' AND feed_images.propertyref = feed_property.propertyref AND feed_characteristics.propertyref = feed_property.propertyref;
The query completes without errors but does not delete the entries in the DB. If I run the query singly in PHP My Admin it functions correctly.

thanks for your help

I'm trying to set it so that it will delete an entire populated directory based upon a value in the database then after finishing that to go back and delete that row in the database.  my current code is

Code: [Select]
<?php $page_title = "Central Valley LLC | Photo Addition" ?>
<?php include("header.php"); ?>
<?php include("nav.html"); ?>
<div id="content">
<form action="delprod.php" method="post" enctype="multipart/form-data">
<label for="which">Choose A Product To Remove:</label>
<?php $con = mysql_connect("localhost","phoenixi_cv","centraladmin");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("phoenixi_cvproducts", $con);
$result = mysql_query("SELECT * FROM Products");
echo "<select name=\"which\">";
while($row = mysql_fetch_array($result))
   {
echo "<option ";
echo "value=\"" . $row['id'] . "\">";
echo $row['Name'] . "</option>";
}
echo "</select>";
mysql_close($con);
?>
<br />
<input type="submit" name="submit" value="Submit" />
</form>
</div><!--#content-->
<?php include("footer.html") ?>

and the delete script

Code: [Select]
<?php
$con = mysql_connect("localhost","phoenixi_cv","centraladmin");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("phoenixi_cvproducts", $con);
$result = mysql_query("SELECT id FROM Products WHERE id=$_POST['which']");
$row = mysql_fetch_array($result)


chdir('assets');
chdir('images');
$mydir = $row . '/';
$d = dir($mydir);
while($entry = $d->read())
{
if($entry!="." && $entry!="..")
{
unlink($_POST['which'] . '/' . $entry);
}
}
rmdir($mydir);
$result = mysql_query("DELETE * FROM Producs WHERE id=$_POST['which']");
?>
Thank you in advance for all your help.  any easier ways of approaching this will be welcome as well

i have a while loop that builds up a table of records, each row has a button that needs to have an action to delete that specific record. I can think of the obvious way around this and add a form around each row and set the button to type="submit". However there is a problem i have the entire table of records wrapped within in a form object for other functionalities.

Does anyone have a solution for this problem?

I want to delete record which i clicked the delete button in the table.

I want a confirm box for delete

Help me solve..

Here is code display.php
Code: [Select]
<?php
$cn=mysql_connect("localhost","root","");

mysql_select_db("register",$cn);

$qry2=mysql_query("SELECT * FROM reg_table");
?>
<html>
<head>
<script type="text/javascript">

function show_confirm()
{
var r=confirm("Do you want to Delete?");
if (r==true) {
 
  }
else {
  alert("You pressed Cancel!");
  }
}

</script>
</head>
<body>
<form action="delete.php" method="get">

<table width="200" border="1">
  <tr>
    <th scope="col">Name</th>
    <th scope="col">Address</th>
    <th scope="col">Gender</th>
    <th scope="col">Qualify</th>
  </tr>
<?php
while($res=mysql_fetch_array($qry2))
{?>

  <tr>
    <td><?php echo $res['name']; ?></td>
    <td><?php echo $res['adrs']; ?></td>
    <td><?php echo $res['gender']; ?></td>
    <td><?php echo $res['qualify']; ?></td>
<td> <a href="edit.php?uid=<?php echo $res['id']; ?>">edit</a></td>
<!--<td>  <button type="button" onClick="return show_confirm();">Delete</button>  </td> -->
    <td> <input type="hidden" name="nid" value="<?php echo $res['id']; ?>" /> </td>
    <td> <input type="submit" value="Delete" name="del" onClick="return show_confirm();">
    </td>

  </tr>
<?php
}
?>

</table>
</form>

</body>
</html>
delete.php

Code: [Select]
<html>


<body>
<?php

$cn=mysql_connect("localhost","root","");

mysql_select_db("register",$cn);


$del_id=$_GET['nid'];
$qry=mysql_query("delete from reg_table where id='".$del_id."' ") or die(mysql_error());

if($qry) {
echo "deleted";
}
else {
echo "not deleted";
}
?>

<!--<form action="update.php" method="get">
<br />
Name:    <input name="name" type="text" maxlength="20" /><br /><br />

<input type="hidden" name="uno" value="// echo $id; ">

<input name="submit" type="submit" value="Save" />
</form>
-->
</body>
</html>

nevermind delete

Hi,

I need a simple command to delete all rows where userID = 2567
I had a shot but didn't work: DELETE FROM * WHERE userID='2567' || usgID='2567'

My website is spammed by this user so I want to delete all records by this userID in my database.

Hope someone can help and thanks!

Hello, the user selects an id (sid) on select form then presses confirm button. Below is my delete function however I have error :

Warning: Missing argument 5 for dbstudent::delete_student(), called in C:\xampp\htdocs\cw1\delstudent.php on line 36 and defined in C:\xampp\htdocs\cw1\studentfunc.php on line 28
SQL Insertion error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(sid, name, address, postcode, photo) from student where values ('1', '', '', '' at line 1

Please advise!!

     function delete_student($sid, $name, $address, $postcode, $photo) {
        $esc_name = mysql_real_escape_string($name, $this->conn);
        $esc_address = mysql_real_escape_string($address, $this->conn);
        $esc_postcode = mysql_real_escape_string($postcode, $this->conn);
        $esc_photo = mysql_real_escape_string($photo, $this->conn);
        $sql = "delete (sid, name, address, postcode, photo) from student where
values ('{$sid}', '{$esc_name}', '{$esc_address}', '{$esc_postcode}', '{$esc_photo}')";

        $result = mysql_query($sql, $this->conn);

        if (!$result) {
            die("SQL Insertion error: " . mysql_error());
        } else {
            $numofrows = mysql_affected_rows($this->conn);
            return $numofrows;
        }
    }

I get registered spammers on my website, they seem to bypass captcha (manually spamming I believe) and we all know why IP ban is no good so I want to be able to simply delete all rows on my database where this user comes from.

Can you use one query to delete from all tables with WHERE userID= '$userID' ??

hi. just a quick question about a delete link i have on a page ive made.

basically with the code i have currently...nothing at all happens when i click delete...and i cant for the life of me see the problem.

here is the code for the page where the delete link is.

$sql=mysql_query("SELECT items.itemname, cat.catid, cat.category FROM items,cat WHERE cat.catid=items.catid");
$temp_item = "";
while($res=mysql_fetch_array($sql))
{
echo "<table cellpadding='0' cellspacing='0' width='700'><tr>";
if($res['category'] != $temp_cat )
    {
 echo "<td width='30%'>" . "<b>" . $res['category'] . "</b>" . "</td>" . "<td width='30%'><a href='delcat.php?id=$res[catid]'>Delete Category</a></td></tr>";
$temp_cat=$res['category'];
}




and here is the code for the delete page that should do the deleting.

include_once("config_class.php");

 $db = new db();         // open up the database object
 $db->connect();            // connect to the database

//getting id of the data from url
$id = $_GET['id'];

//deleting the row from table
$result=mysql_query("DELETE FROM cat WHERE listid=$id");

//redirecting to the display page (index.php in our case)
header("Location:list.php?id=$id");


as i said nothing happens...please help anybody?

Hi,i know this is a duplicated thread but i have made changed to code and I have been trying to create a functionality which allows users to delete multiple entries from database, I have been working on this for a while now but cant get my head around it, can u please tell me what im doing wrong here?

thanks in advance

<?php

session_start();

include ("../global.php");
//welcome messaage
$username=$_SESSION['username'];
echo "$username";

$query=mysql_query("SELECT id FROM users WHERE username='$username'");
while($row = mysql_fetch_assoc($query))
{
$user_id = $row['id'];
echo $id;
}

$per_page=5;


$start=$_GET['start'];

$record_count =mysql_num_rows(mysql_query("SELECT * FROM rent"));
?>
<td><form name="form1" method="post" action=""> </td>
<?php
$max_page=$record_count/$per_page;

if(!$start)
$start=0;
$result= mysql_query("SELECT id, msg, title, reference FROM msg LIMIT $start, $per_page");
while($row = mysql_fetch_array($result))
{
            
$id=$row['id'];
$msg=$row['msg'];
$reference=$row['reference'];
$title=$row['title'];

?>



<table>


<tr>
    <td align="center" bgcolor="#FFFFFF"><input name="checkbox[]" type="checkbox" id="checkbox[]" value="<? echo $rows['id']; ?>"></td>
        <td><?php echo $title; ?></td>
        <td><?php echo $id; ?></td>
        <td><?php echo $reference; ?></td>
        <td><?php echo $msg; ?></td>


        </tr>
        
</table>
<tr>
<td colspan="5" align="center" bgcolor="#FFFFFF"><input name="delete" type="submit" id="delete" value="Delete"></td>
</tr>
        <?php
        
        //while
        }


$prev=$start - $per_page;
$next=$start + $per_page;        
        


if(!($start<=0))    
    echo    "<a href='view-data.php?start=$prev'>Previous</a>";
    
if(!($start>=$record_count-$per_page))
    echo    "<a href='view-data.php?start=$next'>Next</a>";    
if(isset($_POST['delete']))
{
    for($i = 0; $i <= count($_POST['checkbox']); $i++)
    {
        $del_id = $checkbox[$i];
        $sql = "DELETE FROM rent WHERE id='$del_id'";
        $result = mysql_query($sql);
    }
    

    if($result)
    {
        header('Location: view-data.php');
    }
}
?>

</table>
</form>

ok, so how would I insert a link to remove a photo from this code:
Code: [Select]
<?php
                  include("connect_to_mysql_1.php");

$query  = "SELECT link, id FROM products where page123=$page ORDER BY listorder ASC ";
$result = mysql_query($query);
while($row = mysql_fetch_array($result, MYSQL_ASSOC))
{

$link = stripslashes($row['link']);
$id = stripslashes($row['id']);

?>
      <li id="arrayorder_<?php echo $id ?>"> <img src="<?php echo $link; ?>" width="300" height="250"/>
     
<div class="clear"></div>
      </li>
      <?php } ?>
     
    </ul>
the images are able to move around but I need to know a way to keep photos with their own delete link.  I am thinking of someway using listorder and the page123 to do it.  could anybody help.  I can't really think of a good way to describe the issue...