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PHP - Delete Every Session Apart From Two
Hello, I have many session variables and instead of unsetting them all I want to know if there is some code to remove all current sessions apart from a couple of them.
Cheers Similar Tutorialshey guys im using a session cookie to store a user_id, only if user has clicked to remember me on the login form...that way when autenticating it checks id in db and if matching a user it logs in automatically.
now the problem i want to just remove user_id from a session cookie. if i use the code below to delete the user_id session then it will remove all session cookies.
is there a way just to remove 1 session cookie? thank you
// create session cookie
session_start();
session_set_cookie_params('3600', 'C:\Users\Ricky\Desktop\www\BiSi\private\tmp\session', 'http://127.0.0.1/', true, true);
ini_set('session.gc_probability', 1);
session['user_id'] = 1;
//delete session cookies
setcookie (session_name(), null, time() - 3600);
session_regenerate_id(true);
any help/advise would be greatful...cheers guys
hi friends!! in php > 5 i use "session_regenerate_id(TRUE)" in order to generate a new session file and delete old one. In php 4.x the TRUE parameter doesn't exist: old files will be accumulated until the garbage collector will cleans all. How can I delete old session file in php 4.x having regenerated the new one? I have the following session variables for each item in a cart, which gets updated each time an item is added from the catalog // Register the session variables $_SESSION['ses_basket_items']=$ses_basket_items; $_SESSION['ses_basket_name']=$ses_basket_name; $_SESSION['ses_basket_amount']=$ses_basket_amount; $_SESSION['ses_basket_price']=$ses_basket_price; $_SESSION['ses_basket_stockcode']=$ses_basket_stockcode; $_SESSION['ses_basket_image']=$ses_basket_image; $_SESSION['ses_basket_size']=$ses_basket_size; $_SESSION['ses_basket_sizechoice']=$ses_basket_sizechoice; $_SESSION['ses_basket_id']=$ses_basket_id; I have a current cart page which loops through the sessions and displays them in a form. I have a check box for each item with the name="remove[]" and the value is the itemID which is the $ses_basket_id of item in the session. I have a select box with name="size[]" and the value is the users selected size for each item in the session which is $ses_basket_size Finnally I have a quantity text box with name="quantity[]" and the value is the users quantity value selected which is $ses_basket_amount. After all the looping through the products displaying each item in a row I have an update cart submit button name="change" outside the loop. What I want to know is how do I setup to perform each of these actions for each item in the session, how do I create the foreach loops for each array to delete or modify the correct items in the session if they are modified. I have the code to perform each task but dont know how to loop it through for each item in the session affecting only the correct session items. so if I have 3 items in the session for example, and I want to change the size of item 1, remove item 2 and change item 3 for quantity 1 to quantity 3 with only the 1 form and change button for all items and actions? Hope that makes sense any help with this would be appreciated. Hi all. Here is my scripts which allow user to check multiple rows of data and delete it , but it require select data and click for twice to delete the rows , what should be the error? Code: [Select] <form name="frmSearch" method="post" action="insert-add.php"> <table width="600" border="1"> <tr> <th width="50"> <div align="center">#</div></th> <th width="91"> <div align="center">ID </div></th> <th width="198"> <div align="center">First Name </div></th> <th width="198"> <div align="center">Last Name </div></th> <th width="250"> <div align="center">Mobile Company </div></th> <th width="100"> <div align="center">Cell </div></th> <th width="100"> <div align="center">Workphone </div></th> <th width="100"> <div align="center">Group </div></th> </tr> </form> <? echo "<form name='form1' method='post' action=''>"; while($objResult = mysql_fetch_array($objQuery)) { echo "<tr>"; echo "<td align='center'><input name=\"checkbox[]\" type=\"checkbox\" id=\"checkbox[]\" value=\"$objResult[addedrec_ID]\"></td>"; echo "<td>$objResult[addedrec_ID] </td>"; echo "<td>$objResult[FirstName]</td>"; echo "<td>$objResult[LastName] </td>"; echo "<td>$objResult[MobileCompany] </td>"; echo "<td>$objResult[Cell] </td>"; echo "<td>$objResult[WorkPhone] </td>"; echo "<td>$objResult[Custgroup] </td>"; echo "</tr>"; } echo "<td colspan='7' align='center'><input name=\"delete\" type=\"submit\" id=\"delete\" value=\"Delete\">"; if (isset($_POST['delete']) && isset($_POST['checkbox'])) // from button name="delete" { $checkbox = ($_POST['checkbox']); //from name="checkbox[]" $countCheck = count($_POST['checkbox']); for($d=0;$d<$countCheck;$d++) { $del_id = $checkbox[$d]; $sql = "DELETE from UserAddedRecord where addedrec_ID = $del_id"; $result2=mysql_query($sql) or trigger_error(mysql_error());;; } if($result2) { $fgmembersite->GetSelfScript(); } else { echo "Error: ".mysql_error(); } } echo "</form>"; Thanks for every reply. <body> <?php
include 'sql.php';
$query = "SELECT * FROM validation";
$result = mysqli_query($con , $query);
$rows = mysqli_fetch_assoc($result) ;
$totals = mysqli_num_rows($result) ;
?>
<div id="css">
<form >
<table width="80%" border="0" cellpadding="2" cellspacing="2" >
<caption><h2>Personal Details of Customers</h2></caption>
<tr class="white">
<td bgcolor="#330033"> </td>
<td bgcolor="#330033"> Id Number </td>
<td bgcolor="#330033"> Full Name </td>
<td bgcolor="#330033"> Email Address </td>
<td bgcolor="#330033"> Website </td>
<td bgcolor="#330033"> Comment </td>
<td bgcolor="#330033"> Time </td>
</tr>
<?php while($rows=mysqli_fetch_assoc($result)
{
<tr>
<input type="raido" name="ID" value="<?php echo $rows['ID']; ?>" />
<td bgcolor="#FFFFCC"><?php echo $rows['ID'];?></td>
<td bgcolor="#FFFFCC"><?php echo $rows['Name'];?> </td>
<td bgcolor="#FFFFCC"><?php echo $rows['Email'];?></td>
<td bgcolor="#FFFFCC"><?php echo $rows['Website'];?></td>
<td bgcolor="#FFFFCC"><?php echo $rows['Comment'];?></td>
<td bgcolor="#FFFFCC"><?php echo $rows['Time'];?></td>
<td> </td>
<td> <a href="delete.php? ID= "$rows[ID]" /"> <input type="submit" name="del" value="Delete" /> </a> <input type="button" name= "edit" value="Edit" /> </td>
</tr>
}
?></table> </form> </div> </body> 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'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 am having trouble resolving an error. Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/s519970/public_html/header.php:27) in /home/s519970/public_html/admin/login.php on line 2 What I can gather is I can't use "header (Location: 'admin.php')" after i've used session_start(). I have tried to replace the header (Location: 'admin.php') with this: echo "<script>document.location.href='admin.php'</script>"; echo "<script>'Content-type: application/octet-stream'</script>"; I've been trying to read up on solutions but haven't been able to get it sorted. If anyone can offer some advice that would be greatly appreciated as im new to php. Code: [Select] <?php session_start(); if(isset($_SESSION['user'])) echo "<script>document.location.href='admin.php'</script>"; echo "<script>'Content-type: application/octet-stream'</script>"; ?> <div id="loginform"> <form action="dologin.php" method="post"> <table> <tr> <td><span>Username:</span></td> <td><input type="text" name="username" /></td> </tr> <tr> <td><span>Password:</span></td> <td><input type="password" name="password" /></td> </tr> <tr> <td colspan="2" align="right"><input type="submit" name="login" value="Login" /></td> </tr> </table> </form> </div> I have tried using require_once('yourpage.php'); before my <head></head> tags in the header document where I've specified the html information but this doesn't seem to work. I've been advised to use ob_start("ob_gzhandler"); but I am not sure how to implement this. Any advice is greatly appreciated! I am trying to create an index page which contains registration and login field the problem that i get is on successful login a warning is displayed session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at C:\xampp\htdocs\Eventz.com\index.php:116) in C:\xampp\htdocs\Eventz.com\index.php on line 235 This is the login part of my index.php this tag is inside an html table below the login form I also have a registration form and its php code above the login form Code: [Select] <?php if (isset($_REQUEST['pass'])) { $id=$_POST['id']; $pass=$_POST['pass']; $conn =mysql_connect("localhost","root",""); if (!$conn) { die('Could not connect: ' . mysql_error()); } /* checking connection....success! */ $e=mysql_select_db('test', $conn); if(!$e) { die(''.mysql_error()); } else { echo 'database selected successfully'; } if (isset($_REQUEST['id']) || (isset($_REQUEST['pass']))) { if($_REQUEST['id'] == "" || $_REQUEST['pass']=="") { echo "login fields cannot be empty"; } else { $sql=mysql_query("Select email,password from login where email='$id' AND password='$pass'"); $count=mysql_num_rows($sql); if($count==1) /* $count checks if username and password are in same row */ { session_start(); $_SESSION['id']=$id; echo "</br>Login Successful</br>"; } else { echo "</br>invalid</br>"; echo "please try to login again</br>"; } } } } ?> Any help or suggestion would be appreciated in this page http://maximaart.com/newscp/ i have this problem Code: [Select] Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/maximasy/public_html/newscp/index.php:1) in /home/maximasy/public_html/newscp/index.php on line 2 my source code is <?php session_start(); include_once("config.php"); include_once("functions.php"); $errorMessage = ''; if (isset($_POST['txtUserId']) && isset($_POST['txtPassword'])) { if ($_POST['txtUserId'] === "$user" && $_POST['txtPassword'] === "$pass") { // the user id and password match, $_SESSION['basic_is_logged_in'] = true; require("main.php"); exit;?> I'm making a simple login system with MySQL and PHP (very simple, I'm just starting with PHP). The MySQL portion is done, but I need to ensure only people who are logged in can see certain content. To check if people are logged in, my website checks that they have the $_SESSION['user'] variable set. If it is set, then it lets them continue through the website, if not, it tells them to login. Is that enough security, or can people simply inject a session cookie into their browser to spoof that they are logged in? My idea was to generate a session key cookie when they login (just a random string of letters and numbers) and store that in the database, then on every page, check to make sure their session key is the same thing that's in the database. Is this necessary? It seems expensive. hi everyone. i'm wondering what the best way is to create a session variable and pass it to an iframe. i need to do something along these lines, but it doesn't seem to pass the ID. Any hints on how i should accomplish this? Code: [Select] session_start(); $_SESSION['ID']=$_GET['ID']; // id from previous page $ID=session_id(); <iframe src="iframepage.php?ID=<?php echo $ID; ?>" style="width:680px; height:200px;" noresize="noresize" frameborder="0" border="0" scrolling="Yes" allowtransparency="true" /> </iframe> Evening! I've been iffing and ahhing over this and well im not too sure, hence the post. Code: [Select] // Redirects if there is no session id selected and echos the error on the previous page if(!isset($_GET['get']) || ($_GET['getget'])){ header("Location: #.php?error"); } So it should simply check if get is set if it isnt then see if getget is set? If not redirect and show the error. Now ive tried it and even when get/getget is set it still redirects, probably something silly. Care to share anyone? Harry. Just curious how other people feel about this. I am working on an application where a lot of info is pulled from MySQL and needed on multiple pages.
Would it make more sense to...
1. Pull all data ONCE and store it in SESSION variables to use on other pages
2. Pull the data from the database on each new page that needs it
I assume the preferred method is #1, but maybe there is some downside to using SESSION variables "too much"?
Side question that's kind of related: As far as URLs, is it preferable to have data stored in them (i.e. domain.com/somepage.php?somedata=something&otherdata=thisdata) or use SESSION variables to store that data so the URLs can stay general/clean (i.e. domain.com/somepage.php)?
Both are probably loaded questions but any possible insight would be appreciated.
Thanks!
Greg
Edited by galvin, 04 November 2014 - 10:30 AM. 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> I am building a user interface to manipulate a database I have in mySQL and one of the functions is deleting records from a table I call Titles. Given my primary key is mID and a column in the table is Title, here is the code I'm working with: $sql="delete from myDb.Titles where mID=" . $_GET['mID']; if (mysql_query($sql)) { $target="delete.php?"; } echo "Successfully deleted title: " . $_GET['Title']; The actual delete itself is working fine and the record deletes properly. What I am trying to do is display the Title field associated with the record being deleted and it's not working. I don't know if I am misusing the GET function or not, but that's where I am. Any help would be appreciated. I need a bit of help. I am displaying records from a db, and want the user to be able to delete a record. I'm almost there (I think) but it doesn't pass the variable ($hours_id) to the delete query. Any ideas? Should be easy...but I'm just at my end. <?php include '../php/config_conn.php'; $querysum = "SELECT SUM(total_time) FROM `coop_hours` where user = '".$_SESSION['user_name']."'"; $resultsum = mysql_query($querysum); $arr = mysql_fetch_row($resultsum); $resulthours = $arr[0]; $querytime = "SELECT * FROM `coop_hours` WHERE user = '".$_SESSION['user_name']."' ORDER BY 'date_completed'"; $result = mysql_query($querytime); $num = mysql_num_rows($result); mysql_close(); echo "<table width='800' cellpadding='0'><tr> <td><strong>Coop Job</strong></td> <td align=center><strong>Date Completed</strong></td> <td align=center><strong>Total Time</strong></td> <td><strong>Comments</strong></td><td>Delete Entry</td></tr>"; $i=0; while ($i < $num) { $hours_id = mysql_result($result, $i, "hours_id"); $user = mysql_result($result, $i, "user"); $coop_job = mysql_result($result, $i, "coop_job"); $date_completed = mysql_result($result, $i, "date_completed"); $start_time = mysql_result($result, $i, "start_time"); $end_time = mysql_result($result, $i, "end_time"); $total_time = mysql_result($result, $i, "total_time"); $comments = mysql_result($result, $i, "comments"); echo "<tr><td>$coop_job</td> <td align=center>$date_completed</td> <td align=center>$total_time</td> <td>$comments</td> <td align=center> <a href='php/del.php'><img src='images/del.png'></a></td> </tr>"; $i++; } echo "<tr><td colspan=5><hr></td></tr>"; echo "<tr><td></td><td align=right>Total hours:</td><td align=center>$resulthours</td><td></td></tr>"; echo "<table>"; ?> And here is del.php: <?php include '../../php/config_conn.php'; $del_query = ("DELETE FROM coop_hours WHERE hours_id = '".$hours_id."' LIMIT 1"); $result = mysql_query($del_query); header("Location: http://.../myaccount-testing.php"); ?> 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? 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> |
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