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POUsername is not displaying PHP/MySQL
 

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  1. POUsername is not displaying PHP/MySQL
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    <blockquote> <p><strong>Possible Duplicate:</strong><br> <a href="https://stackoverflow.com/questions/5202087/session-variable-not-working">_SESSION variable not working</a> </p> </blockquote> <p>Hello I know it's a common problem, but I think there's nothing wrong with my codes but I'm wondering why my <strong>$_SESSION['myusername'];</strong> is not displaying the currently logged on user.</p> <p>Below is my main.php:</p> <pre><code>&lt;?php session_start(); if(isset($_SESSION['myusername'])){ header("location: index.php"); } echo "Hello " .$_SESSION['myusername']; ?&gt; </code></pre> <p>my checklogin.php</p> <pre><code>&lt;?php session_start(); $host="localhost"; // Host name $username="root"; // Mysql username $password=""; // Mysql password $db_name="dbscholaris"; // Database name $tbl_name="users"; // Table name // Connect to server and select databse. mysql_connect("$host", "$username", "$password")or die("cannot connect"); mysql_select_db("$db_name")or die("cannot select DB"); // username and password sent from form $myusername = $_POST['myusername']; $mypassword = $_POST['mypassword']; // To protect MySQL injection (more detail about MySQL injection) $myusername = stripslashes($myusername); $mypassword = stripslashes($mypassword); $myusername = mysql_real_escape_string($myusername); $mypassword = mysql_real_escape_string($mypassword); $sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'"; $result=mysql_query($sql); // mysql_num_row is counting table row $count=mysql_num_rows($result); // If result matched $myusername and $mypassword, table row must be 1 row if($count==1){ // Register $myusername, $mypassword and redirect to file "main.php" $_SESSION["myusername"] = $myusername; $_SESSION["mypassword"] = $mypassword; header("location:main.php"); } else { echo "Wrong Username or Password"; } ?&gt; </code></pre> <p>Please help me find what I'm missing. Thanks</p>
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    1. COBecause you have not called `session_start()` on `checklogin.php` You must call it on _every_ script which accesses the session.
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      1. USMichael Berkowski
    2. COthen what is the value of session showing ??
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    3. COFurthermore, you have not set the variable to anything. If you don't need a value, at least set it to `TRUE`. `$_SESSION['myusername'] = "the username";`
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      1. USMichael Berkowski
 

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