Untitled

<!DOCTYPE html>
<html>
<title>Writing data to file</title>
<h1>writing data to a file </h1>
<body>
<?php// include 'include.htm'?>
<?php
$first = $_POST["fname"];
$mini = $_POST["mini"];
$last = $_POST["lname"];
$email1 = $_POST["email1"];
$email2 = $_POST["email2"];
$pw1 = $_POST['pw1'];
$pw2 = $_POST['pw2'] ;
$addy = $_POST['addy'] ;
$num = $_POST['num'] ;

$choices = isset($_POST['choices']) ? $_POST['choices'] : 0 ;
$dinner = isset($_POST['dinner']) ? $_POST['choices'] : 0 ;
$precon = isset($_POST['precon']) ? $_POST['precon'] : 0 ;
$zip = isset($_POST['zip']) ? $_POST['zip'] : 0 ;

$total = $choices + $dinner + $precon;

//checks the lenght of the password1== it has to be greater than 8
if( strlen($pw1) > 8 || strlen($pw1) < 1 ){
//Password must be greater than 8 chars
}
//looked online for a password regex checker
$regex = "^\S*(?=\S{8,})(?=\S*[a-z])(?=\S*[A-Z])(?=\S*[\d])(?=\S*[\W])\S*$^";
?>

<?php
//prints out md5 of password entered
$hashForPw1 = md5($pw1);
echo ("Password Entered is:"  .$hashForPw1); ?><br>

<?php
if(preg_match($regex, $pw1) == false){
  //this password didn't work
}
?>

<?php
//checks the lenght of the zipcode== it has to be greater than 5
if (strlen($zip) < 5)
  echo "Zip code must be 5 characters or more//Please click the back button to go back";
  else{
    echo "zip codes match";
  } ?><br>
<?php
if(empty($pwd1))
    echo('Password: Please enter a password.');
?><br>

<?php
if(empty($pw2))
  echo('Password: Please enter a confirm password//click the back button to go back');
?><br>

<?php if (md5($pw1) == md5($pw2))
echo "MD5 of the password is".md5($pw1);
      else{
        echo"Password: Passwords DO NOT match! Please go back and re-enter";
      }
?><br>

<?php
if(empty($email1) ||
!filter_var($email1, FILTER_VALIDATE_EMAIL))
echo "Please click the back button and enter a valid email";
?><br>

<?php
if($email1 != $email2)
        echo "Email: Email Does Not Match! click the back button to go back AND RE-ENTER!";
      else{
        echo  ("Email: The Email You Enter Matches! The Email is" .$email1 );
?>
<br>

</body>
</html>