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PHP - Deleting Database Row Using Checkbox
Hi Everyone,
Im trying to add a delete button to the message inbox page of my website, where when delete is clicked, the checked messages get deleted from the database. After a bit of research on google i have come up with the code below however i cant get it to work. I have replaced the mysql delete query with echo "checked"; just for debugging. $query = mysql_query("SELECT * FROM users WHERE id='$id'"); $row = mysql_fetch_assoc($query); $submit = $_POST['submit']; $username = $row['username']; $checked = $_POST['message']; $messages_query = mysql_query("SELECT * FROM messages WHERE recipient='$username'"); if (mysql_num_rows($messages_query) > 0) { while ($messages_row = mysql_fetch_array($messages_query)) { if ($messages_row['message_read'] == 0) { echo "<div style='background-color:#FFCCCC;'>"; } $message_id = $messages_row['id']; echo "<a href='message.php?id=$message_id'>"; echo "From: " . $messages_row['sender']; echo "Subject: " . $messages_row['subject'] . "<br />"; echo "</a>"; echo "<form method='POST'><input type='checkbox' name='message[]' value='1' /></form>"; if ($messages_row['message_read'] == 0) { echo "</div>"; } } } else { echo "No messages"; } if ($submit) { if ($checked == "1") { echo "checked"; } } ?> <html> <form method="POST"> <input type="submit" name="submit" value="Delete" /> </form> </html> I have also tried the following but i still cant get it to work: if (isset($checked)) { echo "checked"; } Can anybody see where iv gone wrong? Thanks Similar TutorialsHi guys, I am trying out this code but it does not work, any idea what I am doing wrong? <?php include 'connect.php'; $tbl_name="users"; $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>Firstname</strong></td> <td align="center" bgcolor="#FFFFFF"><strong>Lastname</strong></td> <td align="center" bgcolor="#FFFFFF"><strong>Location</strong></td> <td align="center" bgcolor="#FFFFFF"><strong>Email</strong></td> <td align="center" bgcolor="#FFFFFF"><strong>Website</strong></td> </tr> <?php while($rows=mysql_fetch_array($result)){ ?> <tr> <td align="center" bgcolor="#FFFFFF"><input name="checkbox[]" type="checkbox" id="checkbox[]" value="<? echo $rows['id']; ?>"></td> <td bgcolor="#FFFFFF"><? echo $rows['userID']; ?></td> <td bgcolor="#FFFFFF"><? echo $rows['firstname']; ?></td> <td bgcolor="#FFFFFF"><? echo $rows['lastname']; ?></td> <td bgcolor="#FFFFFF"><? echo $rows['location']; ?></td> <td bgcolor="#FFFFFF"><? echo $rows['email']; ?></td> <td bgcolor="#FFFFFF"><? echo $rows['website']; ?></td> </tr> <?php } ?> <tr> <td colspan="5" align="center" bgcolor="#FFFFFF"><input name="delete" type="submit" id="delete" value="Delete"></td> </tr> <? if($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=showusers2.php\">"; } } mysql_close(); ?> </table> </form> </td> </tr> </table> I want to delete rows in a table of my database using check-box. Here are my codes below: Code: [Select] <?php $con = mysql_connect('localhost', 'root', '') or die ('Connection Failed'); mysql_select_db('img', $con) or die ('Connection Failed'); $display = mysql_query("SELECT * FROM photos WHERE email='$lemail'"); echo '<input type="submit" value="Delete" name="del"/>'; echo "<table> <tr> <th>#</th> <th>Images</th> <th>Image description</th> <th>Delete</th> </tr>"; while($row = mysql_fetch_array($display)) { echo "<tr>"; echo "<td>".$row['img_ID']."</td>"; echo "<td><img src='folder/".$row['imaged']."' alt='alt text' width='100' height='100' class='thumb'/> </td>"; echo "<td>".$row['image_description']."</td>"; echo '<td><input type="checkbox" name="delete[]" value="'.$row['img_ID'].'"/></td>'; echo "</tr>"; } echo "</table>"; echo "</form>"; if (isset($_POST['delete'])) { $del = $row['img_ID']; for($i=0;$i<count($_POST["delete"]);$i++) { if($_POST["delete"][$i] != "") { $str = "DELETE FROM photos WHERE img_ID='$del' "; mysql_query($str); echo "Record Deleted."; } } } mysql_close($connect); ?> Here are the problems: 1/ Not working at all, I mean no image is being deleted 2/ At then end, I display a message that the record has been deleted, but if I check multiple checkbox, it keeps writing the message "Records deleted" multiple times My images are stored in a folder while its details in database... Help, thank you Does anyone have a code that will automatically delete stuff out of the database after 30 days of being in there...? Hi. What am I doing wrong he Code: [Select] mysql_query("DELETE FROM availability WHERE id = '$_POST['id']'"); I am able to echo the id but I must be entering the post item incorrectly into the delete string. Can anyone show me my mistake? Thanks I've tried reading through some of the threads but couldnt understand some of them. I've made a newsfeed script which works how i want it to. Now i want to add the function to delete a row from the database from an "admin panel" on the website. So far i have this: <?php include("includes.php"); doConnect(); $get_news = "SELECT id, title, text, DATE_FORMAT(datetime, '%e %b %Y at %T') AS datetime FROM newsfeed ORDER BY datetime DESC"; $result= mysqli_query($mysqli, $get_news) or die(mysqli_error($mysqli)); while ($row = mysqli_fetch_array($result)) { echo '<strong><font size="3">'. $row['title'] .' </font></strong><br/><font size="3">'. $row['text'] .'</font><br/><font size="2">'. $row['datetime'] .'</font><br/><br/><a href="delnews.php?del_id=' .$row['id']. '"> <strong>DELETE</strong></a>';} ?> then my delnews.php is: <?php include("includes.php"); doConnect(); $query = "DELETE FROM newsfeed WHERE id = "$_POST['id']""; $result = mysql_query($query); echo "The data has been deleted."; ?> I believe the problem is $_POST['id']. i've tried different things in there but none work. It displays the echo line but doesnt actually delete anything. I am new to php so this may be a stupid mistake, but try and play nice! Thanks i trying to delete messages out of my message database but im not sure if i'm using this code right or there stuff missing to it :S delete.php <?php require_once('settings.php'); checkLogin('1 2'); $id=$_GET["msgs"]; mysql_query("DELETE messages FROM messages WHERE message_id='$id'"); ?> link usages to delete <a href="delete.php?msgs=<? echo $row['message_id'] ?>">[X]</a> I'm trying to delete rows in the database, based on what checkboxes are left empty by the user... What i have is small application in which a user can add an item to the database and give it tags... for example there is "apple" and it has the tags of "fruit, red, round" What i want is for the user to be able to edit those tags, so the user can remove "fruit" and add "sweet" instead or just remove "fruit" all at the same time. The code i have, somewhat works... This code below loops through the checkboxes and should remove the items that are no longer checked, by going through the database and grabbing all the tags and them checking it against those that are still checked and remove the ones that it didn't find checked...?? However whats happening is when i unchecked say "red" it removes all the other items..so if i had "red, fruit, round' and i want to remove "red" it leaves red but removes the rest. foreach($_POST['tag'] as $r=>$n){ $t = mysql_real_escape_string($_POST['tag'][$r]); $get_tag2 = mysql_query("SELECT * FROM file_cats WHERE fileID='$fileID'") or die(mysql_error()); while($t2 = mysql_fetch_assoc($get_tag2)){ $tmp_tag1 = $t2['category']; if($t==$tmp_tag1){ $remove_tag = mysql_query("DELETE FROM file_cats WHERE fileID='$fileID' AND category='$t' LIMIT 1") or die(mysql_error()); } } } This following piece of code just adds a new tag...however i want it to check to see if that tags already exist in the database, if it does then don't add it just add the new ones.. foreach($_POST['tag'] as $k=>$l){ $tag = mysql_real_escape_string($_POST['tag'][$k]); $add_tag = mysql_query("INSERT into file_cats (fileID, category) VALUES('$fileID', '$tag')") or die(mysql_error()); } My final problem is that i can't remove items if the second snippet of code is there, i have to remove those lines of code in order to remove items, however i can add items with both loops there. I'm basically stuck and hope that someone here can shed some light on what i'm doing wrong, because i know i'm doing something wrong i just can't find it Anyway thank you in advanced i am trying to delete files for a user, and then update the database with the new bandwhitch/free space. here is my code: http://pastebin.com/J2XE9Fip i just can't figure out where i'm going wrong... thanks in advance Hello - I'm opening my website up to visitors for free, and trying to bypass a login screen to go straight into the data content that was appearing after a user logged in. I have an index.php file that included the following code at the beginning: <?php session_start(); include("database.php"); include("login.php"); include("/vservers/skyranks/db_connect.php"); ?> <?header("Cache-control: private"); ?> <html> I deleted the "include("login.php"); line, and was successful at bypassing the username and login screen. However, the page that is supposed to display the data content is incomplete. In fact, it only displays my company's logo. Any ideas as to why the data content is not showing up? Thank you for any help with this, as my php is quite novice at this point. Regards - Joe I'm creating a newsletter and the unsubscribe isn't deleting the database entry like I'm asking it to. Everything else works fine, it even successfully says the user has been removed, but it doesn't actually delete the database entry. I've spent two days trying to figure out why. Here's the code:
Newsletter sign up:
<?php
//DB Connect Info
$servername = "";
$database = "";
$username = "";
$password = "";
// Create connection
$conn = mysqli_connect($servername, $username, $password, $database);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
/*$createTable = $conn->prepare ("CREATE TABLE IF NOT EXISTS email_user (
id int(11) NOT NULL AUTO_INCREMENT,
email varchar(200) NOT NULL,
hash varchar(250) NOT NULL,
PRIMARY KEY (id)
)");
$createTable->execute();
*/
function input_security($data)
{
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
$email = input_security($_POST['email']);
$insertData = input_security($insertData);
if(isset($_POST['submit']))
{
extract($_POST);
if($email!="") :
$email=mysqli_real_escape_string($conn,$email);
$emailval = '/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/';
if(preg_match($emailval, $email)) :
$db_check=$conn->query("SELECT * FROM email_user WHERE email='$email'");
$count=mysqli_num_rows($db_check);
if($count< 1) :
$hash=md5($email.time());
$link = '/unsubscribe.php?key='.$hash;
// Change your domain
$fetch=$conn->query("INSERT INTO email_user(email,hash) VALUES('$email','$hash')");
$to="$email"; //change to ur mail address
$strSubject="Maintenance Fee Relief, LLC | Email Subscription";
$message = '<p>Thank you for subscribing with us.</p>' ;
$message .= '<p>Click here to unsubscribe your email : <a href="'.$link.'">unsubscribe</p>' ;
$headers = 'MIME-Version: 1.0'."\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1'."\r\n";
$headers .= "From: info@";
$mail_sent=mail($to, $strSubject, $message, $headers);
$msg_sucess="Your request has been accepted!.";
else :
$msg="This $email email address is already subscribe with us.";
endif;
else :
$msg="Please enter your valid email id";
endif;
else :
$msg="Please fill all mandatory fields";
endif;
}
?>
<div class="newsletter-sign-up-header-form">
<div id="logerror"><?php echo @$msg; ?><?php echo @$msg_sucess; ?></div>
<form method="post">
<span><input type="email" name="email" placeholder="Email Address - Join Newsletter" class="newsletter-sign-up-header-email" required></span>
<span><button name="submit" value="submit" title="Submit" class="newsletter-sign-up-header-submit-button">Submit</button></span>
</form>
</div>
<?php
//DB Connect Info
$servername = "";
$database = "";
$username = "";
$password = "";
// Create connection
$conn = mysqli_connect($servername, $username, $password, $database);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
?>
<?php
if(@$_GET['key']!=""):
$hash=mysqli_real_escape_string($conn,$_GET['key']);
$fetch=$conn->query("SELECT * FROM email_user WHERE hash = '$hash'");
$count=mysqli_num_rows($fetch);
if($count==1) :
$row=mysqli_fetch_array($fetch);
$conn->query("DELETE email_user WHERE id='$user_id'");
$msg="Your email id unsubscribe with us";
else :
$msg="Please click valid link.";
endif;
else :
header("Location:404.php");
endif;
?>
<!doctype html>
<html lang="en">
<head>
<title>Unsubscribe</title>
</head>
<body>
<div align="center">
<h2><?php echo $msg; ?></h2>
<a href="https://www.--.com">--.com</a>
</div>
Quote
Hi, guys. I am a php newb and stuck (see title). I it will only send the value of 1 tick box over to the page "delete_message.php" This is what i have so far: Code: [Select] <?php // get messages $result = mysql_query("SELECT * FROM tbl_pvt_msg WHERE to_UID='$UID'"); if (!$result) die("Query to show fields from table failed"); while ($data=mysql_fetch_array($result)) { $_SESSION['from_UID']=$data['1']; UIDtoemail(); $from_email=$_SESSION['from_email']; $contents=$data['3']; $timesent=$data['4']; $msg_ID=$data['0']; echo "<form action='scripts/delete_message.php' method='POST' >"; echo "<tr><td>$from_email</td><td>$contents</td><td>$timesent</td><td><input type='checkbox' value='$msg_ID' name='msg_ID' /></td> </tr>"; } // turn uid into email function UIDtoemail(){ $from_UID=$_SESSION['from_UID']; $result = mysql_query("SELECT * FROM tbl_usr WHERE UID='$from_UID'"); if (!$result) die("Query to show fields from table failed"); $data=mysql_fetch_array($result); $_SESSION['from_email']=$data['7']; } ?> </table> <input type="submit" value="Delete" id="delete" /> </form> This topic has been moved to MySQL Help. http://www.phpfreaks.com/forums/index.php?topic=334042.0 I have a bad way with words, so if the title doesnt make much sense nor my post, I apolagize! But I am using a while loop and mysql_fetch_array to echo all information in a table in mysql. With each entry, I have included a button that executes a delete query for that entry. Code: [Select] $delquery="DELETE FROM requests WHERE user = '".$row['user']."'"; mysql_query($delquery,$link2); echo "<font size='19px' color='#009933'>User deleted from request database.When I click the button, the message is echod in every entry listed on the page, and nothing happens. I figured Id use delete from the username, so that way mysql will know which one to delete... but Idk when I think about it thats dumb and makes no sense. Im stuck. This side of the application im trying to make is the admin side where I can process requests. After I process the request I delete it from the database so I know I processed it. I have no idea what query to use for this. Anybody know how I could do this? Thanks Hi I wondering what i did wrong he I wont to register 1 or 0 into database. Checkbox file: <?php Hello again, I have a form that has several options to select features of a computer (vga, dvi, ethernet, modem, zip, etc.) through checkboxes. In the database, it is stored as a 0/1 (false/true). What I am working on is an edit form to make changes if necessary, but I am having trouble populating the checkboxes that are marked as true already. Code: [Select] while($cmp = $_SESSION['DB']->fetch_array($cmpQ)){ $chkbxs = array('vga', 'ps2', 'usb', 'firewire', 'ethernet', 'cddvd', 'fdd', 'zip', 'dvi', 'serial', 'sound', 'wireless', 'modem', 'smartm'); foreach ($chkbxs as $value) { $check=""; if ($cmp[$value] == 1) { $check = "checked"; echo ''.$value.' <br/>'; } ...more code, form below This does it it should. I have an entry with vga, firewire, smartm, and zip selected, and $value returns that properly. In the form, this is how I have it set up. Code: [Select] echo '<input type="checkbox" name="hardware[]" value="vga" '.$check.'>'; Right now, every checkbox is selected, meaning that for some reason, $cmp[$value] == 1 is affecting all checkboxes in the form, even though it is only returning the 4 that are marked as selected when I echo $value. Am I missing something minor or am I going about this the wrong way? Trying to get a form to display checked and unchecked values based on what is in the database. Hard coded form works fine. I implode the array and it goes into the database as a comma delimited string. But I need to let users edit the checkbox values, so I need to create the form by exploding the string, iterating through the array, and outputting the checkbox form elements. Here's what I have... Code: [Select] <p>Specialization: <p> <?php //echo $session->userinfo['specialization']; THIS DISPLAYS THE STRING CORRECTLY $aSpecialization = array('Automotive', 'Aerospace', 'Biotech/Life Sciences', 'Chemicals', 'Damages Analysis', 'Electronics', 'Litigation', 'Manufacturing ', 'Materials', 'Medical Devices', 'Mobile Applications', 'Patent Prosecution', 'Physics', 'Renewable Energy', 'Semiconductors', 'Software', 'Telecommunications', 'Utilities'); //converting comma separated into array using explode function $dbspecialization= explode(',',$session->userinfo['specialization']); // echo $dbspecialization; THIS IS CONFIRMED AS AN array foreach ($aSpecialization as $specialization) { if(in_array($specialization,$dbspecialization)) { echo '<input name="specialization[]" type="checkbox" value="$specialization" CHECKED> $aSpecialization[] <br />'; } else { echo '<input name="specialization[]" type="checkbox" value="$specialization"> $aSpecialization[] <br />'; } } ?> But the output I get is... Code: [Select] <input name="specialization[]" type="checkbox" value="$specialization" CHECKED> $aSpecialization[] <br /> <input name="specialization[]" type="checkbox" value="$specialization"> $aSpecialization[] <br /> <input name="specialization[]" type="checkbox" value="$specialization"> $aSpecialization[] <br /> etc... What am I missing? Hi. I want to put data from these checkboxes (example): Jan (value = jan) Chris (value = chris) Tom (value = 50) Jon (unchecked) Put janchris50 to the database after finding correct row with user ID, which is user_id for this example. Then, the user goes to another page and he should see this: Jan (checked) Chris (checked) Tom (checked) Jon (unchecked) In other words - page should get the information from the database and check the checkboxes that appears to be checked in the database. By the way, it should rewrite the row each time, as the user can modify it. Thanks. Basically i made a form with checkbox using post.. here's the form Code: [Select] <?php echo '<form name="formupload" method="post" action="val3.php">'; echo '<input type="image" src="images/reject.png" name="test" width="170" height="35" border="0" value="reject">'; echo "<table border=\"5\" >"; echo "<tr><th>List of Instructor</th>"; if(mysql_num_rows($result)) { while($row = mysql_fetch_assoc($result)) { echo "<tr><td>"; echo "<input type='checkbox' name='list[]' value='".$row['fullname']."'>" .$row['fullname']."<br/></td>"; echo "</tr>"; } } else { echo "<tr><td>No one to Approve</td></tr>"; } echo '</form>'; ?> Then my val3.php will output the values of the checked checkbox. here's the code. Code: [Select] <?php foreach ($_REQUEST['list'] as $checkbox) { echo $checkbox; echo "<br/>"; } ?> Now i don't know how to insert those values to my database.. help pls. hi all I have 3 checkboxes whose values are getting stored in the database with a comma separator. Code: [Select] <input name="color[]" type="checkbox" value="red" id="red" />red <input name="color[]" type="checkbox" value="blue" id="blue" />blue <input name="color[]" type="checkbox" value="green" id="green" />green values getting stored with comma separator Code: [Select] red, blue, green now i want to show the checkboxes as "checked" to show the customer as which colors they chose lasttime when they submitted the form. How can i make it possible ? If it is possible without the comma separator then i can remove the comma. vineet well i got a few checbox (look below for code) i want to make it so that if i click the checkbox's it sends all the check box value to one column with "," in between them Code: [Select] <input type="checkbox" name="genre" value="fighting" id="genre"/>fighting <input type="checkbox" name="genre" value="school life" id="genre" />school life <input name="genre" type="checkbox" id="genre" value="king" id="genre" />king <input name="genre" type="checkbox" id="genre" value="him" />him |
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