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Wednesday, 1 April 2015

Difference between cookies and sessions in php

Published on: Wednesday, April 01, 2015 by Unknown - 14 comments
Cookies are stored in browser as a text file format.It is stored limit amount of data.It is only allowing 4kb[4096bytes].It is not holding the multiple variable in cookies.

we can accessing the cookies values in easily.So it is less secure.The setcookie() function must appear BEFORE the <html> tag.

 Sessions are stored in server side.It is stored unlimit amount of data.It is holding the multiple variable in sessions. we cannot accessing the cookies values in easily.So it is more secure.

Cookies

Sessions
Cookies are stored in browser as
text file format.

 Sessions are stored in server side.
It is stored limit amount of data.
It is only allowing 4kb[4096bytes]

 It is stored unlimit amount of data.
It is not holding the multiple variable
 in cookies.

 It is holding the multiple variable
 in sessions.
we can accessing the cookies values
in easily.
So it is less secure.
 The setcookie() function must
 appear BEFORE the <html> tag

 we cannot accessing the cookies
values in easily.
So it is more secure.
Destroy Cookies:

  1. if we Closing the browsers at the time
 cookies values destoryed.
 2. setting the cookie time to expire the cookie.

 Destroy Sessions :

  1. using unset() session,we will
destroyed the sessions.
 2. using session_destory(), we we will
destroyed the sessions. 



Example:




<?php
 
  setcookie(name, value, expire, 


path,domain, secure, httponly);






  $cookie_uame = "codingslover";






  $cookie_uvalue= "website";






  //set cookies for 1 hour time
  setcookie($cookie_uname,


$cookie_uvalue, 3600, "/");








  //expire cookies
setcookie($cookie_uname,"",-3600);




?>
   


  




Example:




<?php
    
session_start();

//session variable
$_SESSION['testvaraible'] = 'Codings';
 


//destroyed the entire sessions

session_destroy(); 
       
//Destroyed the session 


variable "testvaraible".
unset($_SESSION['testvaraible']);
?>
   


 









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7. what are the differences between json and jsonp

8. Abstract Class in Php
























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14 comments:








  1. Anonymous3 December 2015 at 16:48
    nice 
    ReplyDelete
  2. Unknown4 December 2015 at 18:28
    nice
    ReplyDelete
  3. jailbreakios5 March 2016 at 01:01
    Thank you! Helps me understand the difference a lot!
    ReplyDelete
  4. cisco ucs training26 November 2016 at 15:43
    This comment has been removed by a blog administrator.
    ReplyDelete
  5. Unknown29 December 2016 at 10:25
    Great
    ReplyDelete
  6. Brave Technologies3 April 2017 at 12:57
    This comment has been removed by a blog administrator.
    ReplyDelete
  7. Unknown5 April 2017 at 14:00
    This comment has been removed by a blog administrator.
    ReplyDelete
  8. prakash dantani23 April 2017 at 01:40
    i like it.

    this content or article is very important for the session tracking.

    beautiful
    ReplyDelete
  9. mani10 August 2017 at 12:49
    This comment has been removed by a blog administrator.
    ReplyDelete
  10. Unknown13 September 2017 at 14:42
    This comment has been removed by a blog administrator.
    ReplyDelete
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