Determining If a Session Is New in PHP

Q

How To Determine If a Session Is New in PHP?

✍: FYIcenter.com

A

There is not direct way to tell if a session is new or old. But you can design your site to have a required session value in all sessions. Then you can check the existence of this value in a session to determine if it is a new session by isset($_SESSION['name']).

Let's say you decided to have a required session value called "Status" with two possible values: "Guest" and "Registered". The landing script of your site should look like:

<?php
  session_start();
  if (!isset($_SESSION['Status'])) {
    $_SESSION["Status"] = "Guest";
    print("<html><pre>");
    print("Welcome to FYICenter.com!\n");
    print("  <a href=login.php>Login</a>\n");
    print("  <a href=guest_home.php>Stay as a guest</a>\n");
    print("</pre></html>\n");
  } else {
    if ($_SESSION["Status"] == "Guest") {
      header( 'Location: http://localhost/guest_home.php');
    } else if ($_SESSION["Status"] == "Registered") {
      header( 'Location: http://localhost/home.php');
    }
  }
?>

⇒ Closing a Session Properly in PHP

⇐ Removing Values Saved in the Session in PHP

⇑ Understanding and Using Sessions in PHP

⇑⇑ PHP Tutorials

2016-10-24, ∼1929🔥, 0💬

Setting session.gc_divisor Properly in PHP
How To Set session.gc_divisor Properly in PHP? As you know that session.gc_divisor is the frequency of when the session garbage collection process will be executed. You should set this value based on the income request traffic. Here are some suggestions: # Set it to 10, if traffic is less than 10,00... 2016-10-24, ∼4004🔥, 0💬

Working with MySQL Database in PHP
Where to find tutorials on how to work with MySQL Database in PHP? A collection of tutorials to answer many frequently asked questions on how to Work with MySQL Database in PHP. Clear explanations and tutorial exercises are provided on connecting and selecting MySQL database, creating and dropping t... 2016-10-22, ∼2962🔥, 0💬

Setting session.gc_maxlifetime Properly in PHP
How To Set session.gc_maxlifetime Properly in PHP? As you know that session.gc_maxlifetime is the session value timeout period. You should set this value based on the usage pattern of your visitors. Here are some suggestions: # Set it to 20 minutes for a normal Web site: session.gc_maxlifetime = 120... 2016-10-24, ∼2746🔥, 0💬

Using MySQL Command Line Interface in PHP
How To Use MySQL Command Line Interface in PHP? MySQL server comes with a command line interface, which will allow you to operate with the server with SQL statements and other commands. To start the command line interface, you can run the \mysql\bin\mysql program. The tutorial exercise below shows y... 2016-10-22, ∼2344🔥, 0💬

Testing the Session Garbage Collection Process in PHP
How To Test the Session Garbage Collection Process in PHP? In order to test the session garbage collection process, you need to change the settings to expire session variables in 10 seconds and run the process on every request: session.gc_probability = 1 session.gc_divisor = 1 session.gc_maxlifetime... 2016-10-24, ∼2224🔥, 0💬

Installing MySQL Server in PHP
How To Install MySQL Server in PHP? MySQL is an open source database management system developed by MySQL AB, http://www.mysql.com. You can download a copy and install it on your local computer. Here is how you can do this: Go to http://dev.mysql.com/downloads /mysql/5.0.html.Select the "Windows" an... 2016-10-22, ∼2205🔥, 0💬

Removing Values Saved in the Session in PHP
How To Remove Values Saved in the Current Session in PHP? If you want to remove values saved in the current session, you should use the unset() function on those saved values in $_SESSION, or use array() to empty $_SESSION: unset($_SESSION['MyColor']) - Removes one value named MyColor in the current... 2016-10-24, ∼2015🔥, 0💬

Closing a Session Properly in PHP
How To Close a Session Properly in PHP? Let's say you site requires users to login. When a logged in user clicks the logout button, you need to close the session associated with this user properly in 3 steps: Remove all session values with $_SESSION = array(). Remove the session ID cookie with the s... 2016-10-22, ∼2014🔥, 0💬

Timeout Period on Session Values in PHP
What Is the Timeout Period on Session Values in PHP? The PHP engine has no direct settings on session timeout period. But it has a session garbage collection mechanism that you can set to remove those special files containing session values. There are 3 settings you can use to define the session gar... 2016-10-25, ∼1975🔥, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.