Major PHP/MySQL Login Project, with session variables -

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alright, past 2 days, i've been scouring internet , trying best put rather sophisticated login system. i've got core of working, users can sign up, , login. i'm not new simple php , mysql, when comes in-depth code i'm lost. want have users enter login, have verified (obviously) , have done, redirected members page displays information pertaining username/account only. i've registered session variables on checklogin.php (the file verify log in's, please below), life of me cannot variables passed actual members page. figured i'd start easy. i'd try , transfer username , display welcome message "hello there, [username used login here]. cannot far. can me out? once this, can go there.

login form (just snippet):

<form class="form-signin" role="form" method="post" action="checklogin.php">          <center><img src="logo.png" style="padding-bottom: 10px;"></center>          <input type="text" name="myusername" id="myusername" class="form-control" placeholder="email address"  required autofocus><br>          <input type="password" name="mypassword" id="mypassword" class="form-control" placeholder="password"  required>          <br>          <button class="btn btn-lg btn-primary btn-block" name="submit" type="submit">sign in</button>                            </form>

check login

<?php             session_start();             $host="localhost"; // host name              $username="username"; // mysql username              $password="********"; // mysql password              $db_name="joinfbla_services"; // database name              $tbl_name="members"; // table name              // connect server , select databse.             mysql_connect("$host", "$username", "$password")or die("cannot connect");              mysql_select_db("$db_name")or die("cannot select db");              // define $myusername , $mypassword              $myusername=$_post['myusername'];              $mypassword=$_post['mypassword'];               // protect mysql injection (more detail mysql injection)             $myusername = stripslashes($myusername);             $mypassword = stripslashes($mypassword);             $myusername = mysql_real_escape_string($myusername);             $mypassword = mysql_real_escape_string($mypassword);             $sql="select * $tbl_name username='$myusername' , password='$mypassword'";             $result=mysql_query($sql);              // mysql_num_row counting table row             $count=mysql_num_rows($result);              // if result matched $myusername , $mypassword, table row must 1 row             if($count==1){              // register $myusername, $mypassword , redirect file "login_success.php"             $_session['myusername'] = $_post['myusername'];             $_session['mypassword'] = $_post['mypassword'];             echo '<meta http-equiv="refresh" content="1;url=http://joinfbla.com/2014/members/services.php">';             }              else {             echo "wrong username or password";             }         ?>

members page:

<div class="col-md-4">             <div class="panel panel-primary">               <div class="panel-heading">hello, <?php session_start(); echo $_session['user']?>!</div>               <div class="panel-body">                 <u><b>baa username:</b></u> [insert php/mysql here]                 <br>                 <u><b>baa password:</b></u> [insert php/mysql here]                 <br>                 <u><b>point's recorded:</b></u> [insert php/mysql here]                 <br>                 <div class="alert alert-warning">note: seniors points year, if field blank not fear.</div>               </div>             </div>             <div class="panel panel-primary">               <div class="panel-heading">this month in fbla!</div>               <div class="panel-body">                 [insert gcalendar here]               </div>             </div>           </div>

just 1 thing noticed right away, might not solve problem:

echo $_session['user']

should be

echo $_session['myusername']

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