Registration form validating errors - php

Question

If I submit blank fields it still adds it into database. I made a loop to check if everything is on place but it keeps redirecting it to error page. I've been struggling with this almost 2 hours but cant find a solution.
Links are here since i can post more than 2 :

Answer 1

Try to set
Don't allow nulls
in the column property of table. It can be done during the table design or Edit table Design in the database.
Hope this helps.

Answer 2

You using empty(). http://us3.php.net/empty
This only returns false if NULL, FALSE, or not exists, NOT if empty string.
You should be doing this:
foreach($required as $post){
if ($_POST[$post] == "") {
die(header("refresh:0.5;url=error.php"));
}
}
However, I don't know why you don't just put this over the entire code block so it only gets executed on submit of the form. Then you don't have to keep rechecking it.
if (isset($_POST)) { //or a specific $_POST variable if multiple submit paths
//code here
}
Additionally, you should edit your question to include the relevant code in the question or in the future, searchers may discover that your pastebin link no longer works.

Answer 3

I think in any way you should make some client-side validation on empty field like jQuery functions :
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript">
$(function(){
$("form").submit(function(){
if($("#first_name").val() == ''){
alert("First name cann't be empty");
return false;
}else if($("#last_name").val() == ''){
alert("Last name cann't be empty");
return false;
}else if($("#email").val() == ''){
alert("Email cann't be empty");
return false;
}else if($("#password").val() == ''){
alert("Password name cann't be empty");
return false;
}
});
});
</script>

Answer 4

You're trying to get indexes on $_POST array that doesn't exist, so correct your $required array and put fields names not the variables names, just like this in process.php:
$required = array('first_name','last_name','password','email');
foreach($required as $post){
if($post = empty($_POST[$post]) || $_POST[$post] == ""){
die(header("refresh:0.5;url=error.php"));
} elseif($required != empty($_POST)) {
echo "";
}
}

Answer 5

I think yor a looking for something like,
if(isset($_POST['field1']) && !$_POST['field1'] =="")
{
//your codes goes here
}
Maybe You have done something like
<input type=text name=name1 value ="" />
If so, Please do it like,
<input type=text name=name1 />
This will not send name1 to your page;