I'm setting a session variable in my header.php here:
<?php
session_start();
if(empty($_SESSION['name'])) {
?>
No name set! <br>
<form action="" method="post">
<input type="text" name="textName"/>
<input type="submit" name="submitName" value="Log in"/>
</form>
<?php
if(isset($_POST['submitName'])) {
$_SESSION['name'] = $_POST['textName'];
}
}
and validating that the name variable is set on my index here:
<?php
include 'header.php';
if(!empty($_SESSION['name'])){
?>
<a href="session_kill.php">Log out</a>
<?php
}
?>
I can confirm that the session variable exists because the logout link appears.
After submitting a name via the form, the session variable updates but the empty() check doesn't reoccur, meaning the textarea stays on the page unless I refresh.
Can anyone tell me why this happens?
Take this part:
if(isset($_POST['submitName'])) {
$_SESSION['name'] = $_POST['textName'];
}
above this:
if(empty($_SESSION['name'])) {}
When you submit the form, at the beginning; since the session is empty and hence the form remains there and then the session is initialized. And when you refresh the page the session check works.
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