How do I get the selected value in a php drop down list?

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I have a drop down list that gets its values from SQL. When a user selects a value I want to store it in a variable. Currently I when I select a value from my drop down list, it doesn't display that value.

It seems that it pr-selects a value and I don't know why?

Here is my code:

XML

<html>
<HEAD>
<link rel="stylesheet" type="text/css" href="mytech.css">
</HEAD>
<body>

<?php
session_start();
if(isset($_SESSION['DeskFusername']))
{
$config = parse_ini_file("noc.ini", true);
  $serverName = $config['server']['SQLserver'];
  $connectionInfo = $config['connectionInfo'];
  $connectionInfo["LoginTimeout"] = 5;
  $conn = sqlsrv_connect($serverName, $connectionInfo);

$tsql = "SELECT userId, EmailAdd
         FROM [Dashboard].[dbo].[EA_t_Master_Users]";




?>
<table id="UserRoles" width="500" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<form name="UserRoles" method="post" action="1.php">
<td>
<table width="100%" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
<tr>
<td colspan="3"><strong>Create User Login</strong></td>
</tr>

<td>User Name</td>
<td>:</td>
<td>
<select name="UserName" id="UserName">
<?PHP
echo "<option value=\"\" disabled=\"disabled\" selected=\"selected\">Please select a Customer</option>";
$stmt = sqlsrv_query( $conn, $tsql);
if( $stmt === false )
{
     echo "Error in executing query.<br/>";
     die( print_r( sqlsrv_errors(), true));
}


while ($row=sqlsrv_fetch_array($stmt, SQLSRV_FETCH_ASSOC)) {

    if($row['EmailAdd'] == $_POST['UserName'])
    {
        $isSel = " selected";
    }
    else
    {
        $isSel = "";
    }

    echo "<option value=\"".$row['EmailAdd']."\">".$row['EmailAdd']."</option>";

                $UserName = $row['EmailAdd'];

}

//
?>
</select>
</td>
</tr>

<tr>

<td>
<?php

    echo $UserName;

?>
</td>
</tr>


</table>
</td>
</form>
</tr>
</table>
<?PHP
}
else
{
header("location:loginTry1.php");
}
?>

</body>
</html>

Posted 2-Jun-15 23:11pm

Member 9451624

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Peter Leow · Answer 1 · 2015-06-03T20:59:00

You have created a variable called

$isSel

and assign it the value of "selected" if the post value matches the "emailAdd" from the rowset, but it is NOT used anywhere after its creation and assignment.
It should be:

PHP

if($row['EmailAdd'] == $_POST['UserName'])
{
    $isSel = " selected";
}
else
{
    $isSel = "";
}
// include the $isSel here
echo "<option value='".$row['EmailAdd']."'".$isSel.">".$row['EmailAdd']."</option>";