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PHP - Deleting From Mysql Database
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 Similar TutorialsThis 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. 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 Does anyone have a code that will automatically delete stuff out of the database after 30 days of being in there...? 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> 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($checked)) { echo "checked"; } Can anybody see where iv gone wrong? Thanks I'm trying to delete rows in the database, based on what checkboxes are left empty by the user... What i have is small application in which a user can add an item to the database and give it tags... for example there is "apple" and it has the tags of "fruit, red, round" What i want is for the user to be able to edit those tags, so the user can remove "fruit" and add "sweet" instead or just remove "fruit" all at the same time. The code i have, somewhat works... This code below loops through the checkboxes and should remove the items that are no longer checked, by going through the database and grabbing all the tags and them checking it against those that are still checked and remove the ones that it didn't find checked...?? However whats happening is when i unchecked say "red" it removes all the other items..so if i had "red, fruit, round' and i want to remove "red" it leaves red but removes the rest. foreach($_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> How would I make a script that would delete any row in a MySQL table that was more than 7 days old? Ok I am trying to delete some rows from a database. I have done this before with success so I thought I could use the same method just modify it a little and it would work. Man was I wrong. Any help on this is much appreciated below is my code. Code for the Query to get the data from the database and for displaying the results in a table: Code: [Select] //GET DATA $sql = "SELECT * FROM `".$tblname."` ORDER BY $orderby $sort LIMIT $startrow,$limit"; $result = mysql_query($sql) or die(mysql_error()); $result2 = mysql_query($sql); //START TABLE AND TABLE HEADER echo "<form name='form1' method='post' action=''><table style='font-size:9.5px;'>\n<tr><th>Delete</th>"; $array = mysql_fetch_assoc($result); foreach ($array as $key=>$value) { if($config['nicefields']){ $field = str_replace("_"," ",$key); $field = ucwords($field); } $field = columnSortArrows($key,$field,$orderby,$sort); echo "<th>" . $field . "</th>\n"; } echo "</tr>\n"; //reset result pointer mysql_data_seek($result,0); //start first row style $tr_class = "class='odd'"; //LOOP TABLE ROWS while($row = mysql_fetch_assoc($result)){ echo "<tr ".$tr_class.">\n<td><a href='remove_rec.php?id=". $rows['ID'] . "'><p>Delete</p></a>"; echo "</td>"; foreach ($row as $field=>$value) { echo "<td>" . $value . "</td>\n"; } echo "</tr>\n"; //switch row style if($tr_class == "class='odd'"){ $tr_class = "class='even'"; }else{ $tr_class = "class='odd'"; } } //END TABLE echo "</table>\n</form>"; Here is the code that should delete the row: Code: [Select] $tblname = 'tablename'; // get value of id that sent from address bar $id=$_GET['ID']; // Delete data in mysql from row that has this id $sql="DELETE FROM $tblname WHERE ID='$id'"; $result=mysql_query($sql); // if successfully deleted if($result){ echo "Deleted Successfully"; echo "<BR>"; echo "<a href='leads3.php'>Back to Results</a>"; } else { echo "ERROR"; } When I click on the link to delete a record it redirects me to the appropriate page with the "Deleted Successfully" message but when I go to view the results the row was not deleted. Any help on this would, again, be greatly appreciated. Hey guys, first post and I've just returned to PHP after about 4 years of no coding, so be gentle! In a nutshell I'm creating a photo album and I've pretty much got the majority of it complete, apart from a few tweaks and the obvious ongoing development. I'm at the stage now where I need to moderate images being uploaded, so I've made an admin only script which displays the uploaded images with links that say approve and delete. Uploaded images are stored in uploads/ which are left there until i move them to img/, plus the filename is stored in mysql so I can "<img src='../uploads/".$row['filename']."' width='200'>". Now, I would like to make the Approve button move the image from uploads/ to img/ and I'd like the delete button to remove both the entry from MySQL and the file from the uploads folder and I'm not too sure on how to make it work. Here's what I have so far in the mod.php file (mod for moderation) Code: [Select] $image = mysql_query("SELECT * FROM images WHERE id"); while($row = mysql_fetch_assoc($image)) { echo " <table> <td> <tr> <img src='../uploads/".$row['filename']."' width='200'><br /> </tr> </td> <td> <tr> <a href=''>Approve</a> <a href=''>Delete</a> </tr> </td> </table> "; } You'll have to ignore the table tags, I'm still getting used to positioning items on the screen lol. Any clues would be greatly appreciated Live long and prosper. Hi, I am having difficulty deleting rows in my table using check boxes. I have all the check boxes displaying for each row and a delete button below the table. However when i click on the delete button it isnt deleting the checked rows, i have displayed the code below that i am using; Code: [Select] <?php $result = mysql_query("SELECT * FROM contact ORDER BY msg_id ASC"); echo "<table border='1'> <tr> <th>Delete</th> <th>Message ID</th> <th>Name</th> <th>Email</th> <th>Message</th> </tr>"; while($row = mysql_fetch_array($result)) { ?> <td align="center" bgcolor="#FFFFFF"><input name="checkbox[]" type="checkbox" id="checkbox[]" value="<?php echo $row['del_id']; ?>"></td> <?php echo "<td>" . $row['msg_id'] . "</td>"; echo "<td>" . $row['name'] . "</td>"; echo "<td>" . $row['email'] . "</td>"; echo "<td>" . $row['msg'] . "</td>"; echo "</tr>"; } echo "</table>"; ?> <td colspan="5" align="center" bgcolor="#FFFFFF"><input name="delete" type="submit" id="delete" value="Delete"></td> </tr> <?php // Check if delete button active, start this if(isset($_GET['delete'])) { for($i=0;$i<$count;$i++){ $del_id = $checkbox[$i]; $sql = "DELETE FROM contact WHERE id=".$_GET['del_id']; $result = mysql_query($sql); } // if successful redirect to delete_multiple.php if($result){ } } mysql_close(); ?> Please help Thank you 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 At the moment I am creating a search function for my website. The approach I have in mind is a pseudo-PHP database. To give an example: A HTML form will submit the results to a PHP file. HTML FORM - Colour: Black PHP RESULT PAGE - if ($_POST['color'] == 'Black') {readfile("./products/black/*.html");} HTML FORM - Price: <$50 PHP RESULT PAGE - if ($_POST['Price'] == '<$50') {readfile("./products/less50/*.html");} The problem here is if there is an item that is black and costs less than $50, then its going to be listed twice. There is probably some code I can write to ommit the listing of duplicate entries, but it is probably going to be messy, so I am wondering if its better to use a centralized MySQL database, rather than a pseudo-PHP database? I've never used MySQL and don't know much about it and this is my first real attempt at using PHP. How would I go about doing the following: I have a csv like this Quote "Division","Section","Group","Product Code","Description","Description + Secondary Description" "Division 1","Section 1","Group 1","BMSLPL25","Test Name","Test Description" "Division 1","Section 1","Group 2","BMSLPL26","Test Name 2","Test Description 2" "Division 2","Section 2","Group 2","BMSLPL27","Test Name 3","Test Description 3" I have a database structured like this Quote Divisions --- id name parent_id Groups --- id name division_id Products --- id code description secondary_description Section is a sub division. What is the best way to get the information from CSV into this database? Should I have another table and store the CSV data as is and then query that to make the other tables. Any help much appreciated. Hi All, Whenever I try to update any piece of PHP code to update a MySQL database, nothing happens. I have tried copying in some of the working codes of a website and tried the same, but no success. I recently installed XAMPP. I am connecting using the correct user id and pass to the database. The scripts are not giving me any error, but just not connecting, that's all. While making such a usage as noted below <FORM name="form1" method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" > I get the following error Firefox can't find the file at /C:/xampp/htdocs/="<?php.. so on Why does this happen? I am pretty new to this, so please do help. Thanks, Satheesh P R |
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