Web Development

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     if($_POST['username'] === "" ||$_POST['userfirstname']=== ""|| $_POST['usersecondname']=== ""||$_POST['useremail']=== ""||$_POST['userpassword']=== ""||
	$_POST['userpasswordr']=== "")
 
    {	
 
	$arr_fields = array("$_POST['username']", "$_POST['userfirstname']", "$_POST['usersecondname']", "$_POST['useremail']",
	                    "$_POST['userpassword']", "$_POST['userpasswordr']");
 
	foreach($arr_fields as $arr_field)
	{
 
		if($arr_field == "")
			{
				$arr_field = "missing";
 
			}
 
	}
	
		$var_username=			$_POST['username'];
		$var_userfirstname=		$_POST['userfirstname'];
		$var_usersecondname=		$_POST['usersecondname'];
		$var_useremail=			$_POST['useremail'];
		$var_userpassword=		$_POST['userpassword'];
		$var_userpassword_repeat= 	$_POST['userpasswordr'];
		
		$arr_fields_processed = array("$var_username", "$var_userfirstname", "$var_usersecondname", "$var_useremail",
						 "$var_userpassword", "$var_userpassword_repeat");
		
		header ("location: subscribe.php?arr_fields_processed");
 
     } else 
 

     	{
	
		
     	 	//sanitize code...
		
     	}