How to place two forms on the same page?

Question

I want to place both register and login form on the same page.
They both starts with:

if (!empty($_POST)) ... 

so, I need something l

Answer 1

Well you can have each form go to to a different page. (which is preferable)

Or have a different value for the a certain input and base posts on that:

switch($_POST['submit']) {
    case 'login': 
    //...
    break;
    case 'register':
    //...
    break;
}

Answer 2

Give the submit buttons for both forms different names and use PHP to check which button has submitted data.

Form one button - btn1 Form two button -btn2

PHP Code:

if($_POST['btn1']){
    //Login
}elseif($_POST['btn2']){
    //Register
}

Answer 3

You can use this easiest method.

<form action="validator.php" method="post" id="form1">
    <input type="text" name="user">
    <input type="password" name="password">
    <input type="submit" value="submit" form="form1">
</form>

<br />

<form action="validator.php" method="post" id="form2">
    <input type="text" name="user">
    <input type="password" name="password">
    <input type="submit" value="submit" form="form2">
</form>

Answer 4

You could make two forms with 2 different actions

<form action="login.php" method="post">
    <input type="text" name="user">
    <input type="password" name="password">
    <input type="submit" value="Login">
</form>

<br />

<form action="register.php" method="post">
    <input type="text" name="user">
    <input type="password" name="password">
    <input type="submit" value="Register">
</form>

Or do this

<form action="doStuff.php" method="post">
    <input type="text" name="user">
    <input type="password" name="password">
    <input type="hidden" name="action" value="login">
    <input type="submit" value="Login">
</form>

<br />

<form action="doStuff.php" method="post">
    <input type="text" name="user">
    <input type="password" name="password">
    <input type="hidden" name="action" value="register">
    <input type="submit" value="Register">
</form>

Then you PHP file would work as a switch($_POST['action']) ... furthermore, they can't click on both links at the same time or make a simultaneous request, each submit is a separate request.

Your PHP would then go on with the switch logic or have different php files doing a login procedure then a registration procedure

Answer 5

Hope this will help you. Assumed that login form has: username and password inputs.

if(isset($_POST['username']) && trim($_POST['username']) != "" && isset($_POST['password']) && trim($_POST['password']) != ""){
//login
} else {
//register
}

Answer 6

Here are two form with two submit button:

<form method="post" action="page.php">
  <input type="submit" name="btnPostMe1" value="Confirm"/>
</form>

<form method="post" action="page.php">
  <input type="submit" name="btnPostMe2" value="Confirm"/>
</form>

And here is your PHP code:

if (isset($_POST['btnPostMe1'])) { //your code 1 }
if (isset($_POST['btnPostMe2'])) { //your code 2 }