<?php
require "conn.php";
$username = "username";
$password = "hashedpassword";
$mysql_qry = "select * from test_social_media_db where username like '$username' and hash '$password';";
$result = mysqli_query($conn, $mysql_qry);
if(mysqli_num_rows($result) > 0){
echo "Welcome";
}
else{
echo"login failed";
}

?>