Where does the form submit to if there is no action specified?

Question

Here is the form that is confusing me

<h1>     Login </h1> <form action="" method="post">     <table align="left" border="0" cellspacing="0" cellpadding="3">         <tr>             <td>                 Username:             </td>             <td>                 <input type="text" name="user" maxlength="30">             </td>         </tr>         <tr>             <td>                 Password:             </td>             <td>                 <input type="password" name="pass" maxlength="30">             </td>         </tr>         <tr>             <td colspan="2" align="left">                 <input type="checkbox" name="remember">                 <font size="2">                     Remember me next time             </td>         </tr>         <tr>             <td colspan="2" align="right">                 <input type="submit" name="sublogin" value="Login">             </td>         </tr>         <tr>             <td colspan="2" align="left">                 <a href="register.php">Join</a>             </td>         </tr>     </table> </form> 

I got the code from this tutorial and it works fine but i cant seem to understand where a/the form submit too if no action is present

Answer 1

If action is set to "" or if the action attribute is missing, the form submits to itself. That is, if your script is index.php, your form submits to index.php.