unable to get data from sql using PDO [duplicate] - php

Question

This question already has answers here:
"Notice: Undefined variable", "Notice: Undefined index", "Warning: Undefined array key", and "Notice: Undefined offset" using PHP
(29 answers)
Closed 7 years ago.
Am using PDO method to get data from SQL But am unable to get data from SQL database since am new to PDO its little hard to understand
but i did the following code but Doesn't work can someone help me
CODE
<?php
$servername = "localhost";
$username = "sanoj";
$password = "123456";
$dbname = "test";
try {
$conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$stmt = $conn->prepare("SELECT * FROM members");
$stmt->execute();
// set the resulting array to associative
$membid=($_GET['memberID']);
$email=($_GET['email']);
$state=($_GET['username']);
}
catch(PDOException $e) {
echo "Error: " . $e->getMessage();
}
echo $membid;
echo $email;
echo $state;
$conn = null;
echo "</table>";
?>
ERROR I GET
Notice: Undefined index: memberID in C:\Users\sanoj\Documents\NetBeansProjects\godaddy optimized\data.php on line 14
Call Stack
# Time Memory Function Location
1 0.0020 132392 {main}( ) ..\data.php:0
( ! ) Notice: Undefined index: email in C:\Users\sanoj\Documents\NetBeansProjects\godaddy optimized\data.php on line 15
Call Stack
# Time Memory Function Location
1 0.0020 132392 {main}( ) ..\data.php:0
( ! ) Notice: Undefined index: username in C:\Users\sanoj\Documents\NetBeansProjects\godaddy optimized\data.php on line 16
Call Stack
# Time Memory Function Location
1 0.0020 132392 {main}( ) ..\data.php:0

Answer 1

Using $_GET variable won't make you get your data from your database using PDO. You were doing right up until $stmt->execute();. What you need to do next is:
while($result = $stmt->fetch(PDO::FETCH_ASSOC))
{
foreach($result as $key => $value)
echo $key.': '.$value.'<br/>';
echo '<hr/>';
}
To get your data.
$_GET array is to fetch your data from the URL or from a GET Ajax call.