PHP - Should I Also Destroy $oldimg?

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);
?>

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')?>" />&nbsp;&nbsp;
                            <input type="submit" class="btn_orange" value="<?php _e('Update Ad &raquo;','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!