PHP - Match Post Variable To Data In Database: Simplest Script Will Not Work!

<?php


require("config.inc.php");

//if posted data is not empty
if (!empty($_POST)) {
  
    if (empty($_POST['username']) || empty($_POST['password'])) {
		
	
	  
	    $response["success"] = 0;
	    $response["message"] = "Please Enter Both a Username and Password.";

		
        die(json_encode($response));
    }

    $query        = " SELECT 1 FROM users WHERE username = :user";
    $query_params = array(
        ':user' => $_POST['username']
    );
    
    try {
        $stmt   = $db->prepare($query);
        $result = $stmt->execute($query_params);
    }
    catch (PDOException $ex) {
        die("Failed to run query: " . $ex->getMessage());

		$response["success"] = 0;
		$response["message"] = "Database Error. Please Try Again!";
		die(json_encode($response));
    }
    

    $row = $stmt->fetch();
    if ($row) {
        die("This username is already in use");
		$response["success"] = 0;
		$response["message"] = "I'm sorry, this username is already in use";
		die(json_encode($response));
    }
    
    $query = "INSERT INTO users ( username, password ) VALUES ( :user, :pass ) ";
    
    $query_params = array(
        ':username' => $_POST['username'],
        ':password' => $_POST['password']
    );
    
    try {
        $stmt   = $db->prepare($query);
        $result = $stmt->execute($query_params);
    }
    catch (PDOException $ex) {
        die("Failed to run query: " . $ex->getMessage());
		$response["success"] = 0;
		$response["message"] = "Database Error. Please Try Again!";
		die(json_encode($response));
    }

	$response["success"] = 1;
	$response["message"] = "Username Successfully Added!";
	echo json_encode($response);

    
} else {
?>
	<h1>Register</h1> 
	<form action="index.php" method="post"> 
	    Username:<br /> 
	    <input type="text" name="username" value="" /> 
	    <br /><br /> 
	    Password:<br /> 
	    <input type="password" name="password" value="" /> 
	    <br /><br /> 
	    <input type="submit" value="Register New User" /> 
	</form>
	<?php
}

?>

<?php 
	$username = "root"; 
    $password = ""; 
    $host = "localhost"; 
    $dbname = "drinkdealz"; 


   
    $options = array(PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8'); 
     
  
    try 
    { 
       
        $db = new PDO("mysql:host={$host};dbname={$dbname};charset=utf8", $username, $password, $options); 
    } 
    catch(PDOException $ex) 
    { 
       
        die("Failed to connect to the database: " . $ex->getMessage()); 
    } 
     
    $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); 
     
  
    $db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC); 
     
 
    if(function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc()) 
    { 
        function undo_magic_quotes_gpc(&$array) 
        { 
            foreach($array as &$value) 
            { 
                if(is_array($value)) 
                { 
                    undo_magic_quotes_gpc($value); 
                } 
                else 
                { 
                    $value = stripslashes($value); 
                } 
            } 
        } 
     
        undo_magic_quotes_gpc($_POST); 
        undo_magic_quotes_gpc($_GET); 
        undo_magic_quotes_gpc($_COOKIE); 
    } 
     
    header('Content-Type: text/html; charset=utf-8'); 
     
  
    session_start(); 




?>

http://example.com/?Aff=56732&SID=123abc45
http://example.com/?Aff=56732&uv=123abc45&product=1834234
http://example.com/?Aff=56732&cid=123abc45&ace=2gs244s3

$gotoUrl = "http://example.com/?Aff=56732&SID=";
// OR could be listed as such:
// $gotoUrl = "http://example.com/?Aff=56732&uv=default&product=1834234";
// $gotoUrl = "http://example.com/?Aff=56732&cid=&ace=2gs244s3";

// Will attach this to replace value
$cpId = "123abc45";
// Possible sid replacements, depending on the url
$sidList = array("sid","SID","cid","uv");

	if ($gotoUrl){
		foreach($sidList as $sidVar){
			if (preg_match("/$sidVar/i", $gotoUrl)){
			$gotoUrl = preg_replace("#{$sidVar}(?=.*\d)(?=.*[a-z])(?=.*[A-Z])$#", "{$sidVar}={$cpId}", $gotoUrl);
			}
		}
        echo $gotoUrl;
        }

$post='{"cart_items":[{"configuration":{"price":100,"recharge_number":"9999999999"},"product_id":"999","qty":1}]}';

Hello to all,

I have problem figuring out how to properly display data fetched from MySQL database in a HTML table.

In the below example I am using two while loops, where the second one is nested inside first one, that check two different expressions fetching data from tables found in a MySQL database. The second expression compares the two tables IDs and after their match it displays the email of the account holder in each column in the HTML table.

The main problem is that the 'email' row is displayed properly while its while expression is not nested and alone(meaning the other data is omitted or commented out), but either nested or neighbored to the first while loop, it is displayed horizontally and the other data ('validity', 'valid_from', 'valid_to') is not displayed.'

Can someone help me on this, I guess the problem lies in the while loop?
Here is part of the HTML code:

<thead>
 <tr>
 <th data-column-id="id" data-type="numeric">ID</th>
 <th data-column-id="email">Subscriber's Email</th>
 <th data-column-id="validity">Validity</th>
<th data-column-id="valid_from">Valid From</th>
 <th data-column-id="valid_to">Valid To</th>
</tr>
</thead>

Here is part of the PHP code:

    <?php
    while($row = $stmt->fetch(PDO::FETCH_ASSOC))
    {
        echo '
            <tr>
                <td>'.$row["id"].'</td>
        ';
        while ($row1 = $stmt1->fetch(PDO::FETCH_ASSOC)) {
        echo '
                <td>'.$row1["email"].'</td>
        ';
        }
        if($row["validity"] == 1) {
            echo '<td>'.$row["validity"].' month</td>';
        }else{
            echo '<td>'.$row["validity"].' months</td>';
        }
        echo '  <td>'.$row["valid_from"].'</td>
                <td>'.$row["valid_to"].'</td>
        </tr>';
    }
    ?>

P.S. Please know that I have purposely omitted the connection part and the methods in the class that are used in this code to keep the spot of the problem as clean as possible. If you need me to rephrase the question, please ask.

Thank you.

function friendFunction(){
v=$("Donald");
  $.post('./action/friendaction.php',{ user:v.val()},function(d){
alert(d)
});
}

<?
include("admin_code_header.php");


if ($_POST["DeletePost"]) {
    $id = $_POST['id'];
    $query = "DELETE FROM ".$dbTable." WHERE id='".$id."'"; 
    mysql_query($query);
    echo "ID removed from system: ".$id;
  }


if ($_POST["BanIP"]) {
    $IP_To_Add = $_POST["ip"];
    
      $sql = "INSERT INTO ".$IPBanTable." (ip) VALUES (\"$IP_To_Add\")";
      $result = mysql_query($sql);
  }
$result = mysql_query("SELECT * FROM ".$dbTable." WHERE id='".$id."'",$db);

  while ($myrow = mysql_fetch_array($result)) {
    $msg = $myrow["StringyChat_message"];
$idm = $myrow["id"];



?>
<html>
<form name="form<? echo $myrow["id"];?>" method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">

<input name="DeletePost" type="submit" id="DeletePost" value="Delete">

<input name="BanIP" type="submit" id="BanIP" value="Ban <? echo $myrow["StringyChat_ip"];?>">
    </form>
</html>
<?
}
?>