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Malicious Website Stealing Cookies in PHP
How Can Other Webmaster Steal Your Cookies in PHP? All browsers are following the security rule that your cookies are sent back only to your Web servers. They will not be sent to other Webmaster's Web server directly. However, other Webmaster may design some malicious JavaScript codes to steal cooki... 2016-10-29, ∼2995🔥, 0💬

What Is a Session in PHP
What Is a Session in PHP? A session is a logical object created by the PHP engine to allow you to preserve data across subsequent HTTP requests. There is only one session object available to your PHP scripts at any time. Data saved to the session by a script can be retrieved by the same script or an... 2016-10-29, ∼2543🔥, 0💬

Turning on the Session Support in PHP
How To Turn on the Session Support in PHP? The session support can be turned on automatically at the site level, or manually in each PHP page script: Turning on session support automatically at the site level: Set session.auto_start = 1 in php.ini. Turning on session support manually in each page sc... 2016-10-29, ∼2521🔥, 0💬

Understanding and Using Sessions in PHP
Where to find tutorials on how to use Sessions in PHP? A collection of tutorials to answer many frequently asked questions on how to use Sessions in PHP. Clear explanations and tutorial exercises are provided on starting and closing sessions, saving and retrieving values in sessions, deciding how se... 2016-10-29, ∼2503🔥, 0💬

Options to Transfer Session IDs in PHP
What Are Options to Transfer Session IDs in PHP? Once a new session is created, its session ID must be transferred to the client browser and included in the next client request, so that the PHP engine can find the same session created by the same visitor. The PHP engine has two options to transfer t... 2016-10-26, ∼2738🔥, 0💬

Retrieving Session ID from the Current Session in PHP
How To Retrieve the Session ID of the Current Session in PHP? Normally, you don't need to know the session ID of the current session. But if you are interested to know the session ID created by the PHP engine, there are two ways to get it: Calling session() function. It will return the session ID va... 2016-10-26, ∼2453🔥, 0💬

What Is a Session ID in PHP
What Is a Session ID in PHP? A session ID is an identification string of a session. Since there might be multiple visitors coming to your Web site at the same time, the PHP engine needs to maintain multiple sessions concurrently. Session IDs are created and maintained by the PHP engine to identify s... 2016-10-26, ∼2453🔥, 0💬

Retrieving Values Stored in Session in PHP
How To Retrieve Values from the Current Session in PHP? If you know some values have been saved in the session by another script requested by the same visitor, you can retrieve those values back by using the pre-defined associative array called $_SESSION. The following PHP script shows you how to re... 2016-10-26, ∼2215🔥, 0💬

How Sessoion IDs Are Transferred in PHP
How Session IDs Are Transferred on Your Web Server in PHP? As you know there are two options the PHP engine can use to transfer session IDs to the client browsers. But how to do know which option is your PHP engine is using? The PHP sample script will help you to find out: &lt;?php session_start... 2016-10-25, ∼2690🔥, 0💬

Using Cookies to Transfer Session IDs in PHP
How To Force the PHP Engine to Use Cookies to Transfer Session IDs in PHP? If you want to force your PHP engine to use cookies to transfer session IDs instead of URL parameters, you can open the PHP configuration file, php.ini, and make the following changes: session.use_cookies = 1 session.use_only... 2016-10-25, ∼2569🔥, 0💬

Where Are Session Values Stored in PHP
Where Are Session Values Stored in PHP? When a value is saved into the current session by one PHP page, the PHP engine must store this value somewhere on Web server, so that the PHP engine can retrieve it back when same visitor comes back to request another PHP page. Where are the session values sto... 2016-10-25, ∼2399🔥, 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, ∼2319🔥, 0💬

Security of Storing Session ID as a Cookie in PHP
Is It More Secure to Use Cookies to Transfer Session IDs in PHP? Is it more secure to use cookies to transfer session IDs? The answer is yes, because attacking your Web site using URL parameters is much easier than using cookies. So if you are the system administrator of your Web server, you should ... 2016-10-25, ∼2227🔥, 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, ∼4554🔥, 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, ∼3227🔥, 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, ∼2682🔥, 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, ∼2395🔥, 0💬

Determining If a Session Is New in PHP
How To Determine If a Session Is New in PHP? 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['... 2016-10-24, ∼2345🔥, 0💬

What Is session_register() in PHP
What Is session_register() in PHP? session_register() is old function that registers global variables into the current session. You should stop using session_register() and use array $_SESSION to save values into the current session now.     ⇒ Working with MySQL Database in PHP ⇐ Closing a Session ... 2016-10-22, ∼4603🔥, 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, ∼3319🔥, 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, ∼2717🔥, 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, ∼2592🔥, 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, ∼2377🔥, 0💬

What Is a Result Set Object in PHP
What Is a Result Set Object in PHP? A result set object is a logical representation of data rows returned by mysql_query() function on SELECT statements. Every result set object has an internal pointer used to identify the current row in the result set. Once you get a result set object, you can use ... 2016-10-20, ∼3680🔥, 0💬

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Blockchain Container EPUB General HTML JSON Microsoft Node.js PHP Python RSS Tools Visual Studio Web