php - Form not POSTing values -

form:

<form id="register" method="post" action="pro/register.php">     <input type="text" maxlength="30" placeholder="username" id="user" /><br />     <input type="email" maxlength="64" placeholder="email" id="email" /><br />     <input type="password" placeholder="password" id="pass1" /><br />     <input type="password" placeholder="confirm password" id="pass2" /><br />     <input type="submit" value="register" id="submit_register" /> </form> 

pro/register.php page:

$user = $_post['user']; $email = $_post['email']; $pass1 = $_post['pass1']; $pass2 = $_post['pass2'];  //debug echo "<strong>details:</strong><br>"; echo $user.", ".$email.", ".$pass1.", ".$pass2."<br>";  if($pass1!==$pass2){     header('location:../login.php?alert=pass');     exit; }  $hash = hash('sha256', $pass);  include "../inc/functions.php";  $salt = createsalt(); $hash = hash('sha256', $salt . $hash);  include "../inc/connect.php";  $stmt = $dbh->prepare("insert `users`                  (`username`,`email`,`password`,`salt`,`pic`)                  values (:username,:email,:password,:salt,:pic)"); $stmt->bindparam(':username',$user); $stmt->bindparam(':email',$email); $stmt->bindparam(':password',$hash); $stmt->bindparam(':salt',$salt); $stmt->bindparam(':pic',$pic); $stmt->execute(); $dbh=null;  header('location:../login.php?alert=newreg'); 

output when form posted:

details: , , ,  

<input type="text" maxlength="30" placeholder="username" id="user" name="user"/><br /> 

try adding name field.