How to clear the session using a button and javascript

Question

Session is client side staff, but is it possible through clear it using javascript code? I would like too have the idea like this and ,can it convert to jquery format? Thank you.

js

    $(function(){
  $("#closeTab").click(function() {
    window.parent.$('#tt').tabs('close','Create List');
        $.post("clear.php",function(data){
      });
  });
});

php

    <?
if (isset($_SESSION['lname']))
unset($_SESSION['lname']);
if (isset($_POST['creminder']))
unset($_SESSION['creminder']);
?>

Is this one ok ?

I think should be unset($_SESSION['cart']); or $_SESSION['cart']='' — user782104
– user782104, Commented Mar 20, 2012 at 2:24

Shyju · Accepted Answer · 2012-03-20 02:34:59Z

5

make an ajax call to the server and let your server page kills/ends the session

HTML

<a href="#" id="aKill" > Kill Session</a>

Script

$(function(){

  $("#aKill").click(function(){
        $.post("serverpage.php",function(data){
        // if you want you can show some message to user here
     });
});

and in your serverpage.php, Execute the PHP script to terminate the session.

edited Mar 20, 2012 at 2:34

answered Mar 20, 2012 at 2:23

Shyju

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6 Comments

user782104 Over a year ago

Can i do it without alert? would you mind slightly modify it? thank you

Shyju Over a year ago

@user782104 : Just take it out the alert then . I updated the answer now

user782104 Over a year ago

no ,of course, would you help me , how to go to a specific page when pressing a button?

Shyju Over a year ago

@user782104 : Which page ? elaborate that pls. May be as a new question

user782104 Over a year ago

I elaborate it clearly, take a look if you are free. stackoverflow.com/questions/9781152/…

|

Starx · Accepted Answer · 2012-03-20 04:17:44Z

2

Create a separate file to clear the session only. clearsession.php

session_start();
session_destroy();

Now, make a simple request

$("#aKill").click(function(){
    $.get("clearsession.php");
}

answered Mar 20, 2012 at 4:17

Starx

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Comments

Ohgodwhy · Accepted Answer · 2012-03-20 02:34:13Z

The below covers the basics more or less.

The Function:

function destroySession(){
  var theForm = $("#yourForm");
  //we don't need any ajax frame.
  theForm.each(function(){ this.reset() });
  $.ajax({
    url: 'destroysession.php',
    type: 'post',
    data: 'sure=1', //send a value to make sure we want to destroy it.
    success: function(data);
      alert(data);
    }
  });
}

The PHP (destroysession.php):

<?php
  //whatever logic is necessary


  if(!empty($_POST['sure'])){ 
     $sure = $_POST['sure'];
     if($sure == 1){
       //logic to destroy session
       echo 'Session Destroyed!';
     }else if($sure != 1){
       //logic to perform if we're being injected.
       echo 'That value is incorrect. What are you doing over there?';
     }
  }else{
     //logic to perform if we're being injected.
     echo 'That value is incorrect. What are you doing over there?';
  }
?>

The HTML:

<input type='button' value='reset' onclick='destroySession()'>

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