How do you write login and logout code in php?

already exists.

Would you like to merge this question into it?

already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

exists and is an alternate of .

Have a session_start(); at the very top of the page in php like this:

Then write a login form:
<form action="login.php" method = "POST">
<input type = "text" name = "username">
<input type = "password" name = "password">
<input type = "submit" value = "submit">

now start a new page called login.php. Put session_start(); at the top of the page again. Now you'll have two different $_POST variables from the form that got submitted. It's $_POST['username'] and $_POST['password']. the "name" of the input is what the $_POST variable is. And it's a $_POST because of the method of the form. Now you should change the names of the $_POST just to make it easier.
$username = $_POST['username'];
$password = $_POST['password'];

Now it's time to see if that username and password are in the database

$mysql = "SELECT COUNT(*) FROM users WHERE username = '$username' AND password = '$password'"; // Select statement to find user
$query = mysql_query($mysql); // Query to see if user exists
$result = mysql_query($query); // Result for query. Should be either 1 or 0.

if ($result != 1)
alert ("That username or password doesn't exist");
<meta http-equiv="refresh" content = "1; URL = index.php">
<?php // Javascript alert saying that username or password was wrong then loading the page back to the main page.
$_SESSION['username'] = $username; // Setting the variable for the username so now you can use $_SESSION['username'] anywhere on your website to display who is logged in.

You have to put session_start(); at the top of every webpage though. Now for the logout. Create a page called logout.php. You can link to this page however you'd like. All you need for this page is:

session_destroy(); //destroys the current session
<meta http-equiv="refresh" content = "1; URL = index.php"> //Reloads the page back to the index.php
4 people found this useful

Build-a-Bearville login codes?

If you're asking for passwords, then no.. If you're asking for something else, please elaborate.. Fleurblack. if you add me i will be you bff and we can share clothes and etc. my name is ellierockstar216. plz add me

Login code for HTML?

If you mean how to create a login code with HTML, you need a tag called and a tag called and something in another programming language, such as php or java. There is no login code necessary to use HTML.

How do you write to the registry in PHP?

\nImpossible, php is not designed for such things,\nmaybe with php-gtk (but i don't think so),\nlearn C/C++ or (i don't advise you to) or learn a scripting language like python or if you want it easy learn autoit3

How do you encrypt PHP source code?

There are many options to encode and encrypt PHP source code, the most common one being Zend Guard. However it must be noted that using any encryption method will require that the server on which the application is run to have the correct extension to decrypt and decode the PHP source code. An al ( Full Answer )

Tamagotchi music star login codes?

Hmm. There are similar questions to this, but I can juice this one up. I'll give you some TAMAGO codes as well :P Music Star: Boy Petitchi (boy)___RIKKI__C21D50B 5ADDF82 Kuribotchi_______GRANT__E2B0E59 434C21B Kuchitamatchi____RIKKI__B636C29 189FB90 Kikitchi_________RENEE__B506A72 6E8 ( Full Answer )

How do you create a login system using PHP?

Here are the steps . Create a register form using html form elements. Keep them minimum like username, password, confirm password, email and 2-3 more fields . On Submit button use validation to check form input possibly using javascript or php side validation . Save the details from form submi ( Full Answer )

How do you create login and registration forms using PHP and MySQL?

A very simple form . Create a registration form . Add client side validation onsubmit event . Add database connection, create new database & table with columns . Add server side validation for the data which is sent by client to server . Add insert statements to insert form data to mysql (ma ( Full Answer )

How do you insert PHP code into JavaScript?

PHP is server-side code which means that the code is executed on the web server. The pages are dynamically created and sent to the user's browser.. JavaScript is a client-side code which means that it runs on the user's computer after the page has been sent from the server.. It is possible to comb ( Full Answer )

How do you embed PHP code in C code?

PHP and C are two different programming languages that cannot directly interact with eachother. You can have a program made with C call a PHP script, using its output (an indirect interaction), but there's no way to "embed" PHP into C code.

How do you make a login using PHP?

Create an HTML form with METHOD="post" and ACTION="login2.php". In login2.php check if the entered username and password are correct. You can get the username with $_POST['name_of_username_input']. The same goes for the password.

What are the login codes for tamagotchi v4 website?

To get a login code, go to PC under the heart icon on your Tamagotchi. (Version 4 or higher) Your tama will jump to Tamatown, and leave you a password. With this password, you can enter Tamatown with your pet on the computer! Be sure that when you leave Tamagotchi town, you type in your logout pass ( Full Answer )

Code for mobile alert in PHP?

You can use an email to SMS gateway to send SMS messages from a PHP script. This will likely be a paid for service, there used to be some network specific free services, but I think most of them are now closed, presumably due to abuse from spammers. Search for "email to SMS gateway". To send e-mail ( Full Answer )

What Is Wrong With This PHP Code?

the code is: function pppf($var1) { // Get PPPF Code Infomation $sql = "SELECT * FROM pppf_code"; $pppf_query = mysql_query($sql); while($pppf = mysql_fetch_assoc($pppf_query)) { $y = mysql_num_rows($pppf_query); if ($x

Php Source code for validation?

If you wish to check the syntax of your source code, you need to run the code through the PHP CLI with the -l option. There are also some online resources to validate the syntax. This will check only the syntax of your file. This will not however detect runtime errors or logic errors. You must absol ( Full Answer )

How do you lock PHP source code?

PHP is a server side language so the user doesn't see the code. There is no need to lock the source code for it. If you are working with files on php there are some functions to lock the files:

How is PHP code designated in a webpage?

PHP code is never executed by the web browser, and the source code of a PHP file will normally not be sent to the browser at all. In this sense, there is no designation of PHP code on the client's side-- it all appears to be HTML, text, XML, or whatever other type of output you choose to produce. On ( Full Answer )

Code of find vowels in string in php?

$vowel_arr=array('a','e','i','o','u'); $string="This is my sentence"; $len=strlen($string); $vowel_cnt=0; for($i=0;$i

What is PHP data coding?

PHP data coding is softwares that allows or has frameworks which can make PHP input to it's own script language. So you may code programs for example with PHP, just that it has to be extended PHP because of new functions and features. It may also be application coding for the web.

How can you see the php code that is executed in your browser?

May be this example will help. Please focus on where ob_implicit_flush(true) and ob_end_flush(); are placed in your code. Version 1:-------------------------------- e aa b c Version 2:------------------------------ eaa b c Version 3:----------------------------- ( Full Answer )

How do you write login and logout code in vb?

this is for login wb3.Document.GetElementById("Email").SetAttribute("Value", textbox1.Text). wb3.Document.GetElementById("Passwd").SetAttribute("Value", textbox2.Text). Dim elements As HtmlElementCollection = wb3.Document.All. For Each webpageelement As HtmlElement In elements. If ( Full Answer )

What PHP Codes?

if i got your question right, you mean "what are php tags?" your should write PHP codes between where ... should be replaced by codes that you need. But if you mean "what are php codes?": there are some default codes that you may find them on, and the other part is codes (Functions ( Full Answer )

How do you compile php code?

If you are looking to create an executable (.exe) file on windows then I highly recommend this program to compile your php source code to an exe file.

What are the secret codes for the login on Moshi Monsters?

The way to enter secret codes on Moshi Monsters has changed. You no longer enter them on the LogIn page. As to the codes, there are many codes available for Moshi Monsters and many ways to get them. You can get a code when you purchase a Moshi Monsters toy. You can get a code by winning a contest ( Full Answer )

How do you write a RPG game in php?

The process if very complicated and time-consuming, particularly if you want the game to be "good". Here is a basic outline for a very basic RPG. First, you need a plot. This is something that the player must accomplish. Next, you need a character for the player to interact with the game world. The ( Full Answer )

What are the php codes?

Your question is very vague, The PHP Codes as you call them could be referring to the server-side code written in PHP that a website uses. for more information about PHP go to

How you write log out code in php?

if you're using a session, you can simply use the unset function: unset($_SESSION); session_unset(); session_destroy(); good luck !

How do you write coding php using switch case?

The case structure in PHP uses the following syntax: switch($foo){ . case 'bar': . doSomething(); break; . case 'blah': . doSomethingElse(); break; . default: . handleOtherCases(); .

How do you write homepage module in php?

A home page can be any php script. The most common used name for the 'home page' is the file called index.php in the public_html folder of your web host.