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PHP - Sessions Destroy
hey guys im having a spot of botter unsetting, destroying a session which has been given a cookie lifetime...i know it is possible to destroy all sessions using session_destroy() but i want to destory a particials session and not all of them. here is my method if anyone can give some advice on how i could do this please...thank you
public function destroy($name = null)
{
$namespace = $this->_namespace;
$sessions = $_SESSION[$namespace];
if ($name == null)
{
foreach ($sessions as $name => $value)
{
$session = $sessions[$name];
unset($sesion);
if (isset($session))
{
// sessions with lifetime
ini_set('session.cookie_lifetime', 0);
ini_set('session.gc_max_lifetime', 0);
ini_set('session.gc_probability', 1);
ini_set('session.gc_divisor', 1);
$session;
}
}
}
else
{
unset($sessions[$name]);
}
session_regenerate_id(true);
}
Similar TutorialsMy code below, i already imagedestroy($newimage)... but i'm not sure if i should be destroying $oldimg as well? Any thoughts? $newimg = imagecreatetruecolor($sizeA,$sizeA) or die('Problem In Creating image'); $background = imagecolorallocate($newimg, 255, 255, 255); imagefilledrectangle($newimg, 0, 0, $sizeA, $sizeA, $background); $oldimg = imagecreatefromjpeg($source)or die('Problem In opening Source Image'); imagecopyresampled($newimg,$oldimg,0,$move,0,0,$sizeA,$new_height,ImageSX($oldimg),ImageSY($oldimg)) or die('Problem In resizing'); imagejpeg($newimg,$s1DIR,90) or die('Problem In saving'); imagedestroy($newimg); Hey guy's i have a script i did a few months ago and now noticed that it is doing its job but keeps the old file ..so i got the image a few times but on a different angle...
how can i optimize this code to delete the old image when doing the rotation?
<?php
session_start();
include_once 'dbconnect.php';
if (!isset($_SESSION['userSession'])) {
header("Location: index.php");
}
$degrees = -270;
$path = $_GET['Folder'];
$file =$_GET['Pic'];
$fileid =$_GET['id'];
$image = $path.'/'.$file;
$imageN = $path.'/New_'.$file;
//load the image
$source = imagecreatefromjpeg($image);
//rotate the image
$rotate = imagerotate($source, $degrees, 0);
$NewImg='New_'.$file ;
//set the Content type
//header('Content-type: image/jpeg');
//display the rotated image on the browser
//imagejpeg($rotate);
imagejpeg($rotate,$imageN,100);
//free the memory
imagedestroy($source);
imagedestroy($rotate);
$sql = "UPDATE Coupon_list SET product_image_thumb = '$NewImg' WHERE id = '$fileid'";
if (mysqli_query($DBcon, $sql)) {
echo "Rotation ok";
echo('<script language="Javascript">opener.window.location.reload(false); window.close();</script>');
} else {
echo "Error Rotating: " . mysqli_error($DBcon);
}
mysqli_close($DBcon);
?>
<img src="gears.gif" alt="" />
Hi guys, I'm having a problem with destroying Cookies in IE8 (maybe other versions of IE but this is the one I'm testing on). I am checking to see if the referrer of the site is not itself, and if not, delete all cookies with the cookie domain. if ($_COOKIE['exp_last_visit'] < mktime("23", "59", "59", "12", "03", "2010")) { if (!strstr($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST'])) { foreach ($_COOKIE as $key => $value) { setcookie($key, $value, time()-10000, "/", ".domain.com"); } } } This works in Chrome and FF, but of course, not IE8. If anyone could shed any light on this I'd be really grateful! Hi all, My session is not destroy even after I have click 'log out' The user will only log out only when I have closed the browser. May I know what could have caused the problem? Below is my code My admin.php page Code: [Select] <?php // For logging out if (isset($_SESSION['username'])) { echo '<a href="admin_logout.php">Log Out (' . $_SESSION['username'] . ')</a>'; // Connect to the database $dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME); // Retrieve the user data from MySQL $query = "SELECT tutor_id, name FROM tutor_profile ORDER BY name ASC"; $data = mysqli_query($dbc, $query); // Loop through the array of user data, formatting it as HTML echo '<h4>Latest members:</h4>'; echo '<table>'; while ($row = mysqli_fetch_array($data)) { echo '<td><a href="viewprofile.php?tutor_id=' . $row['tutor_id'] . '">' . $row['name'] . '</a></td></tr>'; } echo '</table>'; mysqli_close($dbc); } else { echo '<a href="admin_login.php">Log In</a>'; } ?> My logout.php page Code: [Select] <?php // If the user is logged in, delete the session vars to log them out session_start(); if (isset($_SESSION['admin_id'])) { // Delete the session vars by clearing the $_SESSION array $_SESSION = array(); // Delete the session cookie by setting its expiration to an hour ago (3600) if (isset($_COOKIE[session_name()])) { setcookie(session_name(), '', time() - 3600); } // Destroy the session session_destroy(); } // Delete the user ID and username cookies by setting their expirations to an hour ago (3600) setcookie('admin_id', '', time() - 3600); setcookie('username', '', time() - 3600); // Redirect to the home page $home_url = 'http://' . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']) . '/admin_login.php'; header('Location: ' . $home_url); ?> Currently I have a Javascript button to close a tab window which is great, but annoying problem is when the user opens up the section again all the previous session errors are there. I have tried the following, which didnt work; [ function destroy() { window.open('destroyCode.php'); } <a href='javascript:window.close()' onclick="destroy()" ><img class='close' src='images/close.jpg' alt='Close Window' /></a> ] [ <?php session_unregister("add_customer_errors"); session_unregister("add_customer_form"); session_destroy(); ?> <html> <body onload="javascript:window.close()"> </body> </html> ] Any ideas of how to do it? I have got the session being unregistered if the data is correct and saved to the database. But what is the user wants to start and then changes there mind. Hello, How do I get a user's session destroyed when he closes his browser? Thanks in advance As my title said the question, i want to destroy my session after a particular time if user is being ideal.. currently i am using this code to define my session: Code: [Select] session_start(); // Check, if username session is NOT set then this page will jump to login page if (!isset($_SESSION['myusername'])) { header('Location: admin.php'); } what would be the best way to automate/force session destroy and cookie erase i have a facebook iframe, with facebook login which gets the activation token now the user is not logged out from the login script after he logs out of facebook. any ideas how to force cookie timeout without a logout button? im playing with Code: [Select] <?php session_start(); //Global User Object Var //loggedInUser can be used globally if constructed if (isset($_SESSION['userCakeUser'])) { $obj = casttoclass('stdClass', $_SESSION['userCakeUser']); $_SESSION['userCakeUser'] = $obj; $_SESSION['start'] = time(); // taking now logged in time $_SESSION['expire'] = $_SESSION['start'] + (1 * 60) ; // ending a session in 1 minute } if(isset($_SESSION["userCakeUser"]) && is_object($_SESSION["userCakeUser"])) { $loggedInUser = $_SESSION["userCakeUser"]; } ?> I am using a WordPress theme that uses some of its own functions besides WP functions. Let me make clear from the start that when I say "Multiple Checkboxes" in the paragraphs below I am NOT talking about checkboxes that each hold a single value. I am talking about one Checkbox field that allows multiple values to be selected and puts those values into an array with one Name value and stores the output in a string in a single mysql table field. Right up front, what I need during the Edit Ad functions is the inbuilt function that will Delete the previous Array of values in any multiple checkbox when the ad is updated. Right now updating the ad works for every situation except NO values selected or for Unchecking all previously selected values in a Multiple Checkbox. If I have, for example, 4 checkboxes selected and unselect all of them before submitting the edited ad it will return the last saved array of values but not an Empty array with no checkboxes selected. This theme has a Form Builder with a Custom fields builder used by the admin to create forms for a classified ads website. According to which category of ad the Ad creation procedure will show different forms, with different fields. I had to manually create the capability to generate multiple checkboxes...so that the different multiple checkboxes when selected and updated to the mysql table might hold a variety of values in a comma-delimited array. That works fine. When the Ad is edited on its own page, (outside of the Wordpress admin dashboard) the problem is that if a user would uncheck all checkboxes in a particular multiple checkbox then the unselected state does not overwrite the previous array of values. What returns after editing is the previous selected values. I have tried jquery functions but none of them are working the way I had hoped. so one type of checkbox might have a hypothetical value like this "name="cp_checkbox_help[]" and if three options are selected then on submit the value could be--- name="cp_checkbox_help[Sunday,Monday,Tuesday]" I use implode and explode to store the array as comma separated and retrieve the array for editing or display. I guess I need to create a Null or empty value as a default that only changes when selections are made. But, since I use implode and explode to make the array "pretty" I don't know if simply specifying nothing will erase a whole array on update. Here is some of the code used to see how I get what I get-- This displays the checkboxes that I create and name and fill with different values-- case 'checkbox': ?> <?php $options = explode(',', $result->field_values); echo '<div id="checkboxes"><table width="100%" border="0" cellspacing="0" cellpadding="5"> <tr> <th colspan="2" scope="col">' . $result->field_label. '</th> </tr>'; $myvals= explode(',', $post_meta_val); foreach ($options as $option) { { ?> <tr> <td width="4%"><input style="display:inline-block; float:left;" type="<?php echo $result->field_type; ?>" name="<?php echo $result->field_name; ?>[]" class="checkbox<?php if($result->field_req) echo ' required'?>" id="<?php echo $field_label; ?>" value="<?php echo $option; ?>" <?php foreach ($myvals as $myval) { if (in_array($myval, array($option), true)) {echo 'checked="yes"';}}?>/></td> <td width="96%"style="vertical-align:top; text-indent: 7px; text-align: left;" ><?php echo $option . '</td> </tr> ' ?> <?php } } echo ' </tr> </table></div><div class="clr"></div>'; break; Following is the main part of the code that updates the Ad form-- // update the ad and return the ad id $post_id = wp_update_post($update_ad); if($post_id) { // now update all the custom fields foreach($_POST as $meta_key => $meta_value) { if (cp_str_starts_with($meta_key, 'cp_')) if (cp_str_starts_with($meta_key, 'cp_checkbox_charley')) $meta_value= implode(',', $_POST['cp_checkbox_charley']); if (cp_str_starts_with($meta_key, 'cp_checkbox_help')) $meta_value = implode(',', $_POST['cp_checkbox_help']); if (cp_str_starts_with($meta_key, 'cp_checkbox_hello')) $meta_value= implode(',', $_POST['cp_checkbox_hello']); //echo $meta_key . ' <--metakey <br/>' . $meta_value . ' <--metavalue<br/><br/>'; // for debugging update_post_meta($post_id, $meta_key, $meta_value); } $errmsg = '<div class="box-yellow"><b>' . __('Your ad has been successfully updated.','cp') . '</b> <a href="' . CP_DASHBOARD_URL . '">' . __('Return to my dashboard','cp') . '</a></div>'; } else { // the ad wasn't updated so throw an error $errmsg = '<div class="box-red"><b>' . __('There was an error trying to update your ad.','cp') . '</b></div>'; } return $errmsg; } Back on the Edit Ad page this is the Submit <p class="submit center"> <input type="button" class="btn_orange" onclick="window.location.href='<?php echo CP_DASHBOARD_URL ?>'" value="<?php _e('Cancel', 'cp')?>" /> <input type="submit" class="btn_orange" value="<?php _e('Update Ad »','cp') ?>" name="submit" /> I have a feeling what I need is just a couple of lines to detect no posted values and then... but if one checkbox array has 6 values in it and another checkbox array has only 3 values, for example, do I need to count each specific checkbox for number of values and then overwrite or will one function completely delete the previous array and its commas? I would really appreciate some expert assistance here! I have an "Email a Friend" form that captures the referring url and saves it in a session. The problem is that if someone decides not to send the form and navigates away from the page, and then decides to email another page, it saves the previous url. How can I have it so that it clears the previous url and uses the new one? Code: [Select] if(!isset($_SESSION['referrer'])){ //get the referrer if ($_SERVER['HTTP_REFERER']){ $referrer = $_SERVER['HTTP_REFERER']; } else{ $referrer = "http://www.mcse-training-classes.com"; } //save it in a session $_SESSION['referrer'] = $referrer; } I haven't used sessions much until now, so this is probably due to my ignorance. I have a page that sets the session variable, and if I print from that page, the session variable (an array) is correct. But when I move to the next page, the same session variable has old, old, wrong data. The $arrAttendeeList is an exploded list from a textarea on a form turned into an array. Example: This page, let's call it page1.php, sets the variable: Code: [Select] <?php $_SESSION['arrAttendeeList'] = $arrAttendeeList; foreach ($_SESSION['arrAttendeeList'] as $temp) { print "$temp <br />"; } exit; ?> Results: Smithers, Waylon Bouvier, Selma Brockman, Kent But the next page, page2.php, when I call the same variable: Code: [Select] <?php foreach ($_SESSION['arrAttendeeList'] as $temp) { print "<br />$temp <br>"; } ?> I get yesterday's data: Smithers, Waylon Bouvier, Selma I've tried setting the session var to null but with the same results. Do I need to kill the session var before setting it to something else? Thanks - Hi guys, I have come across a problem when working with session data, I have been storing data from a textarea in a session, but the problem is when I retrieve the data and display it back in a textarea or to mysql it saves the carriage returns and line breaks as \r\n not converting it to actual line breaks. e.g saving the following from a text area; Line 1 Line 2 Line 3 will actually show as: Line 1 \r\nLine 2 \r\nLine3 How do I get it to show properly as intended? I have tried str_replace('\r\n', '\n'); with double and single quotes any helpful suggestions would be much appreciated. Thanks.. Hello, Is there a problem in destroying a session and then starting it in the same file, for example: session_name(); session_start(); session_destroy(); And lastly, if I create a variable $_SESSION['user'] under a session called 'one' i.e. session_name("one") and then create another variable $_SESSION['user'] under a session called 'two' i.e. session_name("two"). Are these two variables the same? How do you set a time limit on a session? I there. I am making a small game, either you or the computer win depending on who's life hit 0 first I am using sessions to hold the health values, however I need a little bit of help. How do I make it actually go down after each move until one hits 0? Here is my script and thanks in advance... Code: [Select] <?php session_start(); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Fighting Game</title> </head> <body> <form action="fighting_game.php" method="post"> <select name='move_choice' id='move_choice'> <option value='punch'>Punch</option> <option value='kick'>Kick</option> </select> <input type='submit' name='submitbtn' value='Continue' id='submitbtn'> </form> <div id='matchdiv'> <?php $_SESSION['ai_health'] = 100; $_SESSION['player_health'] = 100; $moves_ai = array("Computer punches you in the face!","Computer kicks you in the gut!"); $moves_player = array("You punch Computer in the face!","You kick computer in the gut!"); $move_damage = array(2,10); $move_dam_multiplier_player = array(rand(1,5),rand(5,10)); $move_dam_multiplier_ai = array(rand(1,5),rand(5,10)); if($_POST['submitbtn']){ $choice = $_POST['move_choice']; } if($choice == "punch"){ $total_dam_ai=($move_damage[0]*$move_dam_multiplier_ai[0]); $total_dam_player=($move_damage[0]*$move_dam_multiplier_player[0]); echo"$moves_player[1]"." Causing ".$total_dam_player." damage!<br>"; echo"Computers current health is ". ($_SESSION['ai_health']-$move_damage[0]*$move_dam_multiplier_player[0]); echo"<br>$moves_ai[1]"." Causing ".$total_dam_ai." damage!<br>"; echo"Your current health is ". ($_SESSION['player_health']-$move_damage[0]*$move_dam_multiplier_ai[0]); } elseif($choice == "kick"){ $total_dam_ai=($move_damage[1]*$move_dam_multiplier_ai[1]); $total_dam_player=($move_damage[1]*$move_dam_multiplier_player[1]); echo"$moves_player[1]"." Causing ".$total_dam_player." damage!<br>"; echo"Computers current health is ". ($_SESSION['ai_health']-$move_damage[1]*$move_dam_multiplier_player[1]); echo"<br>$moves_ai[1]"." Causing ".$total_dam_ai." damage!<br>"; echo"Your current health is ". $new_player_health=($_SESSION['player_health']-$move_damage[1]*$move_dam_multiplier_ai[1]); } if($_SESSION['ai_health']<=0 && $_SESSION['player_health']>=0){ echo"<br>Computer falls to the ground! He is knocked out! You win!"; } if($_SESSION['player_health']<=0 && $_SESSION['ai_health'] >= 0){ echo"<br>You fall to the ground! You are knocked out! You lose!"; } if($_SESSION['player_health']<=0 && $_SESSION['ai_health'] <=0){ echo"<br>You both fall to the ground! You are both knocked out! It's a draw!"; } ?> </div> </body> </html> So I am trying to set my session length, but it doesn't seem to be working. session_set_cookie_params("84600"); session_start(); i have two files in php both have the same code and the file is Code: [Select] <?php session_start(); $con = mysql_connect("l","root",""); // here localhost and password will be filled accordingly if (!$con) { die('Connection failu ' . mysql_error()); } mysql_select_db("student",$con); $fetch=mysql_query("SELECT * from student1") or die(mysql_error()); $row = mysql_fetch_array($fetch) or die(mysql_error()); sleep(10); echo "Name: ".$row[0]."</br>"; echo " Age: ".$row[1]."</br>"; echo " Address: ".$row[2]; mysql_close($con); ?> Now i have another file which has the same code as above except there is no sleep function used in it . Now when i run the file which is wothout sleep it displyas results in seconds however the file with sleep function takes it time. Now the problem is if i load the file woth sleep function first then its delayed nature is reflected in another file which is without sleep() i.e now the file without sleep is taking longer time to open. please explain all this and possible solution to this problem the other file is Code: [Select] <?php session_start(); $con = mysql_connect("localhost","root","instablogs"); if (!$con) { die('Connection failu ' . mysql_error()); } mysql_select_db("student",$con); $fetch=mysql_query("SELECT * from student1") or die(mysql_error()); $row = mysql_fetch_array($fetch) or die(mysql_error()); echo "Name: ".$row[0]."</br>"; echo " Age: ".$row[1]."</br>"; echo " Address: ".$row[2]."</br>"; mysql_close($con); ?> I am trying to create a blog and visitor log, where I should be able to log in as admin and add the item and see the visitor log. I want a password protected administration section and I want to use sessions on the administration section. When I for example click on add post, I want it to log in and go to page addpost.php where I can enter my text. This is what I've done so far. I would like to know what I have done wrong and how I should do to accomplish what I have mentioned above. <?php session_start(); if(isset($_POST['btnLogin']) || isset($_POST['addpost'])){ $txtUserId = $_REQUEST['txtUserId']; $txtPassword = $_REQUEST['txtPassword']; if (isset($_POST['txtUserId']) && isset($_POST['txtPassword'])) { if ($_POST['txtUserId'] === 'admin' && $_POST['txtPassword'] === 'abc123') { //$_SESSION['basic_is_logged_in'] = true; echo "you are logged in"; } elseif (empty($txtUserId) || empty($txtPassword)) { echo "fill in username and password"; } elseif ($_POST['txtUserId'] != 'admin'){ echo "wrong username"; } elseif ($_POST['txtPassword'] != 'abc123'){ echo "wrong password"; } } } ?> <?php //if (!isset($_SESSION['basic_is_logged_in']) // || $_SESSION['basic_is_logged_in'] !== true) ?> <html> <head> <title>Main User Page</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> </head> <body> <form method="post" name="frmLogin" id="frmLogin" action="main.php"> <table width="400" border="1" align="center" cellpadding="2" cellspacing="2"> <tr> <td width="150">User Id</td> <td><input name="txtUserId" type="text" id="txtUserId"></td> </tr> <tr> <td width="150">Password</td> <td><input name="txtPassword" type="password" id="txtPassword"></td> </tr> <tr> <td><input type="submit" name="btnLogin" value="Login"></td> </tr> <tr> <td><input type="submit" name="addpost" value="add post" /></td> </tr> <tr> <td><input type="submit" name="showstat" value="Show visitors log" /></td> </tr> <tr> <td><input type="submit" name="blogg" value="To blog (logout)" /></td> </tr> </table> </form> </body> </html> |
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