php - No values in $_POST variable after Submit HTML form -

i have html form, sending data through post php-file, , php-file should process data (make looking structure) , send via mail.

but $_post variable empty....

i have small html form:

<form id="form" method="post" action="formmailer.php">             <div id="input1">                 <input name="name" type="text" placeholder="ihr name"> <br>                 <input name="email" type="email" placeholder="ihre e-mail"> <br>             </div>             <div id="input2">                  <textarea name="nachricht" rows="10" cols="30"></textarea> <br>                  <input type="submit" value="" name="submit" id="submit">              </div> </form> 

and formmailer.php uses these variables:

<?php //   if(isset($_post['nt']) && isset($_post['ntb']))  {   //  $an = "info@website.de"; $name = $_post['name']; $email = $_post['email']; $nachricht = $_post['nachricht'];  // mailheader utf-8  $mail_header = 'from:' . $email . "n"; $mail_header .= 'content-type: text/plain; charset=utf-8' . "rn";  // create layout $message = " name:       $name  email:      $email  nachricht:  $nachricht  ";  // send mail mail($an, $message, $mail_header ); } else {    echo("<p>email delivery failed…</p>");   }  ?> 

if use if-statement

if (isset($_post["submit"])) 

the mail sending, empty.

am blind? should easy, shouldn't it?

isset($_post['nt']) && isset($_post['ntb']) 

in html not find nt , ntb field.

when use isset($_post["submit"]). in post array php find submit value. did not enter value in form fields why getting empty value in mail.