Berapa lama sesi berlangsung di php?

Sessions and browser's tabs

May you have noticed when you open your website in two or more tabs in Firefox, Opera, IE 7.0 or use 'Control+N' in IE 6.0 to open a new window, it is using the same cookie or is passing the same session id, so the another tab is just a copy of the previous tab. What you do in one will affect the another and vice-versa. Even if you open Firefox again, it will use the same cookie of the previous session. But that is not what you need mostly of time, specially when you want to copy information from one place to another in your web application. This occurs because the default session name is "PHPSESSID" and all tabs will use it. There is a workaround and it rely only on changing the session's name.

Put these lines in the top of your main script (the script that call the subscripts) or on top of each script you have:

if(version_compare(phpversion(),'4.3.0')>=0) {
    if(!ereg('^SESS[0-9]+$',$_REQUEST['SESSION_NAME'])) {
        $_REQUEST['SESSION_NAME']='SESS'.uniqid('');
    }
    output_add_rewrite_var('SESSION_NAME',$_REQUEST['SESSION_NAME']);
    session_name($_REQUEST['SESSION_NAME']);
}
?>

How it works:

First we compare if the PHP version is at least 4.3.0 (the function output_add_rewrite_var() is not available before this release).

After we check if the SESSION_NAME element in $_REQUEST array is a valid string in the format "SESSIONxxxxx", where xxxxx is an unique id, generated by the script. If SESSION_NAME is not valid (ie. not set yet), we set a value to it.

uniqid('') will generate an unique id for a new session name. It don't need to be too strong like uniqid(rand(),TRUE), because all security rely in the session id, not in the session name. We only need here a different id for each session we open. Even getmypid() is enough to be used for this, but I don't know if this may post a treat to the web server. I don't think so.

output_add_rewrite_var() will add automatically a pair of 'SESSION_NAME=SESSxxxxx' to each link and web form in your website. But to work properly, you will need to add it manually to any header('location') and Javascript code you have, like this:

header('location: script.php?'.session_name().'='.session_id()
      . '&SESSION_NAME='.session_name());
?>


May you have noticed when you open your website in two or more tabs in Firefox, Opera, IE 7.0 or use 'Control+N' in IE 6.0 to open a new window, it is using the same cookie or is passing the same session id, so the another tab is just a copy of the previous tab. What you do in one will affect the another and vice-versa. Even if you open Firefox again, it will use the same cookie of the previous session. But that is not what you need mostly of time, specially when you want to copy information from one place to another in your web application. This occurs because the default session name is "PHPSESSID" and all tabs will use it. There is a workaround and it rely only on changing the session's name.0

May you have noticed when you open your website in two or more tabs in Firefox, Opera, IE 7.0 or use 'Control+N' in IE 6.0 to open a new window, it is using the same cookie or is passing the same session id, so the another tab is just a copy of the previous tab. What you do in one will affect the another and vice-versa. Even if you open Firefox again, it will use the same cookie of the previous session. But that is not what you need mostly of time, specially when you want to copy information from one place to another in your web application. This occurs because the default session name is "PHPSESSID" and all tabs will use it. There is a workaround and it rely only on changing the session's name.1

May you have noticed when you open your website in two or more tabs in Firefox, Opera, IE 7.0 or use 'Control+N' in IE 6.0 to open a new window, it is using the same cookie or is passing the same session id, so the another tab is just a copy of the previous tab. What you do in one will affect the another and vice-versa. Even if you open Firefox again, it will use the same cookie of the previous session. But that is not what you need mostly of time, specially when you want to copy information from one place to another in your web application. This occurs because the default session name is "PHPSESSID" and all tabs will use it. There is a workaround and it rely only on changing the session's name.2

Bagaimana cara mengubah batas waktu sesi di PHP?

Meningkatkan Artikel

Simpan Artikel

Seperti Artikel

• Tingkat Kesulitan. Sedang
• Terakhir Diperbarui. 19 Mei 2021

Meningkatkan Artikel

Simpan Artikel

Di PHP, sesi dipertahankan untuk memeriksa apakah pengguna aktif. Ketika pengguna menjadi tidak aktif dan pengguna lupa untuk keluar dari halaman web, ada kemungkinan pengguna lain melihat halaman tersebut menyebabkan pelanggaran keamanan. Secara default, sesi di PHP akan dimusnahkan saat browser ditutup. Batas waktu sesi dapat disesuaikan, untuk membuat halaman pengguna tidak aktif setelah waktu yang ditentukan.  
Memulai sesi. Fungsi PHP, session_start() digunakan untuk memulai sesi di halaman web
Sintaksis.  
 

session_start();

Variabel sesi. Setelah sesi dimulai, variabel sesi dapat dibuat untuk digunakan di masa mendatang. Variabel sesi dapat dibuat dan nilainya dapat disimpan dalam variabel tersebut sebagai berikut
Sintaksis.  
 

• Membuat variabel sesi dengan nama variabel 'var1' dan menetapkan nilai '5' untuk itu dapat dilakukan sebagai.  
   

 $_SESSION['var1']=5;

• Menetapkan variabel ke variabel sesi dapat dilakukan sebagai.  
   

$username="John";
$_SESSION['username']=$username;

Menghancurkan variabel sesi dan sesi. Untuk menghapus semua variabel sesi yang diinisialisasi sebelum menghancurkan sesi, perintah berikut harus digunakan
Sintaksis.  
 

• Untuk menghancurkan sesi tertentu, perintah berikut harus digunakan.  
   

session_unset();

• Untuk menghancurkan sesi lengkap, perintah berikut harus digunakan.  
   

session_destroy();

Mengubah batas waktu sesi. Mengingat ada halaman login dengan tombol 'Login' dalam bentuk HTML. Saat pengguna mengklik tombol 'Masuk', sesi dimulai dan variabel sesi ditetapkan. Variabel sesi untuk menyimpan waktu login diinisialisasi. Kemudian diarahkan ke halaman beranda pengguna.  
 

• Halaman masuk.  
   

php

<?php

// Session starts

session_start();

$username =

 $_SESSION['var1']=5;

 $_SESSION['var1']=5;

 $_SESSION['var1']=5;

 $_SESSION['var1']=5;

 $_SESSION['var1']=5;

 $_SESSION['var1']=5;

 $_SESSION['var1']=5;

 $_SESSION['var1']=5;

 $_SESSION['var1']=5;

 $_SESSION['var1']=5;

$username="John";
$_SESSION['username']=$username;

$username="John";
$_SESSION['username']=$username;

$username="John";
$_SESSION['username']=$username;

$username="John";
$_SESSION['username']=$username;

 $_SESSION['var1']=5;

$username="John";
$_SESSION['username']=$username;

$username="John";
$_SESSION['username']=$username;

$username="John";
$_SESSION['username']=$username;

$username="John";
$_SESSION['username']=$username;

session_unset();

$username="John";
$_SESSION['username']=$username;

$username="John";
$_SESSION['username']=$username;

 $_SESSION['var1']=5;

session_unset();

session_unset();

$username="John";
$_SESSION['username']=$username;

session_unset();

session_unset();

session_unset();

session_destroy();

session_destroy();

Di halaman beranda, untuk mempertahankan sesi, fungsi session_start() dipanggil. Ini memungkinkan kami untuk mengambil variabel sesi dari halaman ini. Menggunakan fungsi time(), waktu saat ini dapat dihitung. Perbedaan antara waktu saat ini dan variabel sesi yang dibuat pada saat login tidak boleh melebihi batas waktu yang diinginkan. Ketika durasinya terlampaui, sesi dimusnahkan dan halaman dialihkan ke halaman Login
Seperti jika batas waktu Sesi = 10 menit. Sesi akan secara otomatis dimusnahkan setelah 10 menit = 10*60 detik = 600 detik
 

• Halaman Beranda.  
   

php

<?php

session_start();

session_destroy();

 $_SESSION['var1']=5;

 $_SESSION['var1']=5;

$username="John";
$_SESSION['username']=$username;

 $_SESSION['var1']=5;

$username="John";
$_SESSION['username']=$username;

<?php1

$username="John";
$_SESSION['username']=$username;

 $_SESSION['var1']=5;

$username="John";
$_SESSION['username']=$username;

 $_SESSION['var1']=5;

session_unset();

$username="John";
$_SESSION['username']=$username;

// Session starts1// Session starts2

// Session starts1// Session starts4

// Session starts1

session_unset();

session_unset();

$username="John";
$_SESSION['username']=$username;

session_destroy();

session_destroy();

session_start();_2

<?php1

$username="John";
$_SESSION['username']=$username;

session_unset();

session_unset();

session_destroy();

session_destroy();

Catatan Pribadi Saya arrow_drop_up

Menyimpan

Silakan Login untuk berkomentar.

Berapa lama sesi harus berlangsung?

Bagaimana cara memeriksa waktu sesi di PHP?

Bagaimana cara mengakhiri sesi PHP setelah 30 menit?

Berapa lama sesi disimpan?