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PHP - Deleting Delete From Database
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> Similar TutorialsHello, I am new to php, and what I need to know and learn is a part of an assignment I normally wouldn't ask for help on the net for an assignment but my teacher is not very helpful and other students are struggling too! I have searched the net inside and out and have tried many things. My problem is that I am trying to remove a line from an array by clicking a delete button. The outpur I need is: a line of text that comes from my text file after it is exploded into an array | With a delete button here next line of text that comes from my text file after it is exploded into an array | With a delete button here etc I have managed to write this much myself - Code: [Select] <?php $file = fopen('fav/fav.txt', 'r'); $file = file_get_contents('fav/fav.txt'); $file_array = explode("\n",$file); array_pop($file_array); foreach($file_array as $line) { echo "<form method='post' action=''>".$line. "<input type='submit' name='post' value='delete'><br>"; $fh = fopen("fav/fav.txt",'w'); foreach ($file_array as $line) { fwrite($fh,$line."\n"); } fclose($fh); } ?> The array_pop deletes from the bottom instead of the line the button is next too, I realise I will need to use and if statement but this is the closest I have gotten. Thanks in advance!!! 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.
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'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 $_POST['id']. i've tried different things in there but none work. It displays the echo line but doesnt actually delete anything. I am new to php so this may be a stupid mistake, but try and play nice! Thanks I'm trying to delete rows in the database, based on what checkboxes are left empty by the user... What i have is small application in which a user can add an item to the database and give it tags... for example there is "apple" and it has the tags of "fruit, red, round" What i want is for the user to be able to edit those tags, so the user can remove "fruit" and add "sweet" instead or just remove "fruit" all at the same time. The code i have, somewhat works... This code below loops through the checkboxes and should remove the items that are no longer checked, by going through the database and grabbing all the tags and them checking it against those that are still checked and remove the ones that it didn't find checked...?? However whats happening is when i unchecked say "red" it removes all the other items..so if i had "red, fruit, round' and i want to remove "red" it leaves red but removes the rest. foreach($_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 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 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 guys, I am recent working on my php to delete the information in a database. When I insert the value in the url bar something is like: www.mysite.com/delete.php?myfavorites=what ever it is&user=test. When I inserted the value in the url bar, it did not search for the value in a database to delete it while match with the username in the url bar. Code: [Select] <?php session_start(); define('DB_HOST', 'localhost'); define('DB_USER', 'mydbuser'); define('DB_PASSWORD', 'mydbpass'); define('DB_DATABASE', 'mydbname'); $link = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD); if(!$link) { die('Failed to connect to server: ' . mysql_error()); } $db = mysql_select_db(DB_DATABASE); if(!$db) { die("Unable to select database"); } function clean($var){ return mysql_real_escape_string(strip_tags($var)); } $favorites = clean($_GET['favorites']); $username = clean($_GET['user']); if($favorites == '' && $username == '') { // both are empty $errmsg_arr[] = 'Favorites are missing.'; $errflag = true; if($errflag) { $_SESSION['ERRMSG_ARR'] = $errmsg_arr; echo implode('<br />',$errmsg_arr); } else { $insert = array(); if(isset($_GET['favorites'])) { $insert[] = 'favorites = \'' . clean($_GET['favorites']) . '\''; } if(isset($_GET['username'])) { $insert[] = 'username = \'' . clean($_GET['username']) . '\''; } if (count($insert)>0) { $names = implode(',',$insert); if($favorites && $username) { mysql_query("DELETE valuedata FROM favorites WHERE username='$username'"); $deleted = mysql_affected_rows(); if($deleted > 0) { echo("The value in favorites are deleted"); } else { echo("failed"); } }else{ echo("failed"); } } } mysql_close($link); ?> If you know how to delete the value in a database for each row while it match with the username in the url, please say so as i would like to know how to do it. Any advise would be much appreciated. Thanks, Mark Hi guys, I need a bit of your help. I have successfully deleted a row in a database after I have inserted the value name with a var function that match with a username in the url bar. Now I would like to delete more than one row, but I don't know how to do this? What I am trying to achieve is to enter the url something like this: www.mysite.com/delete.php?favorites=the value1&use=test It will search for a value in the database and then delete it. But if I add the &favorites=the value2 or more than 2, then search for the values in each row while looking for a username before delete the rows Here's the current code: Code: [Select] <?php session_start(); define('DB_HOST', 'localhost'); define('DB_USER', 'mydbuser'); define('DB_PASSWORD', 'mydbpass'); define('DB_DATABASE', 'mydbname'); $errmsg_arr = array(); $errflag = false; $link = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD); if(!$link) { die('Failed to connect to server: ' . mysql_error()); } $db = mysql_select_db(DB_DATABASE); if(!$db) { die("Unable to select database"); } function clean($var){ return mysql_real_escape_string(strip_tags($var)); } $favorites = clean($_GET['favorites']); $username = clean($_GET['user']); if($favorites == '' && $username == ''){ // both are empty $errmsg_arr[] = 'Both name and email are missing. You must enter one or the other.'; $errflag = true; } if($errflag) { $_SESSION['ERRMSG_ARR'] = $errmsg_arr; echo implode('<br />',$errmsg_arr); } else { $insert = array(); if(isset($_GET['favorites'])) { $insert[] = 'favorites = \'' . clean($_GET['favorites']) . '\''; } if(($favorites) && isset($username)) { mysql_query("DELETE FROM favorites WHERE username='$username' AND favorites='$favorites'"); $deleted = mysql_affected_rows(); if($deleted > 0) { echo "favorites rows is deleted"; } else { echo("favorites are already deleted"); } } } ?> Any advice would be much appreciated. Thanks, Mark I am trying to find a way of deleting entries from a database after a certain time, and also when there is another field in the database set to 0. i have got so far with the code (will delete when other field is at 0) but nothing happens when i try to add in the time. my code im trying to use is below mysql_query("DELETE FROM temp_users WHERE book_stage='0' and WHERE time() > [creation+60]"); creation being the name of the field in the database that holds the unix time stamp of when the entry was created. i need the entry to be deleted one hour after it was created if the book_stage hasnt been changed to 1 during this hour. many thanks, gavin Hello i have a text box and a button on my webpage and want to get the text box to find the username i type into it from the database and when it does it will then go to number and delete any text that is under usernames number field as you can see i have no idea how. Code: [Select] $result = mysql_query("DELETE FROM mytable WHERE username='$username1' AND number='$number1'" ); Code: [Select] <form name="form1" method="post" action="p.php"> <p><input type="submit" value="Enter" /></p> <input name="username" type="text" id="username" size="15" maxlength="35" value="<?php echo $username1; ?>" /> </form> I'm working on an old cms I built a few years ago and for some reason my Delete page isn't working. It has to be something simple I'm overlooking. The database connection is made just above this code and is pulling the thumb and title listed by id. When I push delete I'm getting the cmd=delete&id=2 passed on so something is up with my last if statement (I think). Here is the code: if(!isset($cmd)) { //display all the news $result = mysql_query("select * from verizon order by id"); //run the while loop that grabs all the news scripts while($r=mysql_fetch_array($result)) { //grab the title and the ID of the enws $title=$r["title"];//take out the title $id=$r["id"];//take out the id $thumb=$r["thumb"]; echo "<div id='delete'> <table> <tr> <td width='350px'><strong>$title</strong></td><td><a href='verizondelete.php?cmd=delete&id=$id'> Delete</a></td> </tr> <td colspan='2' align='center'><img src='../upload/verizon/$thumb'></td> </table> </div><br />"; } } if($cmd=="delete") { $sql = "DELETE FROM verizon WHERE id='$id'"; $result = mysql_query($sql); echo "<h1 style='text-align:center;'>deleted!</h1>"; } } ?> Hi. I have the following code to delete a row when the date has passed. Code: [Select] $today = date("dmY"); $vLongDate = date("dmY", strtotime($thisDate)); if ($today > $vLongDate) { mysql_query("DELETE FROM events WHERE id < '$id'"); } $today is current date, while $vLongDate is the date that is on my database. Am i doing the if statement correctly?? Hi, I have created a table named multipath with database name "mydatabase".. I have created a table to store the data in the tables. Check boxes are created to select one row each to delete. But I am unable to delete the rows. Why?? Here's my PHP code <?php $host="localhost"; // Host name $username="root"; // Mysql username $password=""; // Mysql password $db_name="mydatabase"; // Database name $tbl_name="multipath"; // Table name // Connect to server and select databse. mysql_connect("$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>Path ID</strong></td> <td align="center" bgcolor="#FFFFFF"><strong>Path</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"><?php echo $rows['path_id']; ?></td> <td bgcolor="#FFFFFF"><?php echo $rows['path']; ?></td> </tr> <?php } ?> <tr> <td colspan="5" align="center" bgcolor="#FFFFFF"><input name="delete" type="submit" id="delete" value="Delete"></td> </tr> <? // Check if delete button active, start this if($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 successful redirect to delete.php if($result){ echo "<meta http-equiv=\"refresh\" content=\"0;URL=delete.php\">"; } } mysql_close(); ?> </table> </form> </td> </tr> </table> Please u can reply me at sawyerford007ATgmail DOTcom |
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