user3896685 user3896685 - 4 months ago 13
MySQL Question

Php multiple isset check doesn't work

I have 4 inputs and they need to be filled. I made an isset test but it doesn't work. It is always showing true, but all inputs aren't filled and this php is for registering. Can you help me? Sorry for my bad English.

<?php
require('config.php');
Error_reporting(-1);
if (isset ($_POST['submit'])){
$username= $_POST['username'];
$iname= $_POST['iname'];
$email= $_POST['email'];
$pass= $_POST['pass'];
$pass1= $_POST['pass1'];
if (isset ($_POST['username']['iname']['email']['pass']['pass1'])){
/*$username= $_POST['username'];
$iname= $_POST['iname'];
$email= $_POST['email'];
$pass= $_POST['pass'];
$pass1= $_POST['pass1'];*/
if ($pass1 == $pass){
$username= mysqli_real_escape_string($link, $username);
$iname= mysqli_real_escape_string($link, $iname);
$email= mysqli_real_escape_string($link, $email);
$pass= mysqli_real_escape_string($link, $pass);
$pass1= mysqli_real_escape_string($link, $pass1);
$pass= md5($pass);
$check="SELECT username FROM users WHERE username = '$username'";
$rs = mysqli_query($link,$check);
$checker = mysqli_fetch_assoc($rs);
if ($checker['username'] == $username)
{
echo "Username is already taken";
exit();
}
$insert = "INSERT INTO `users` (`id`, `username`, `iname`, `email`, `pass`) VALUES (NULL, '$username', '$iname', '$email', '$pass')";
$query = mysqli_query ($link, $insert) or die("Query error");
//"INSERT INTO users ('id', 'username', 'iname', 'email', 'pass') VALUES ('NULL, '{$username}', '{$iname}', '{$email}', '{$pass}')"
}else{
echo "Passwords doesnt match";
}
}else{
echo "Fill all areas";

}
}else{



}

?>


I tested all answers in the comments, but none of them works! I don't understand why it doesn't work!

Answer

You can use this:

if (isset ($_POST['username'], $_POST['iname'], $_POST['email'], $_POST['pass'], $_POST['pass1'])){
 //your code
}

this condition will return true only if all arguments to isset() are set and do not contain null.

Note: Instead of checking only for isset you should check this for empty also.

Like following:

if (isset ($_POST['username'], $_POST['iname'], $_POST['email'], $_POST['pass'], $_POST['pass1']) && !empty($_POST['username']. $_POST['iname']. $_POST['email']. $_POST['pass']. $_POST['pass1'])){
     //your code
    }