Can't pass php session variable to javascript string variable
While the $_SESSION['Id'] variable exists, the javascript can't seem to bring it at least with this syntax:
CODE
<?php session_start(); ?>
<script>
var a = "<?php echo $_SESSION['Id']; ?>";
alert(a);
</script>
Your syntax looks fine. What happens if you write this?
<?php
php session_start();
echo '<div style="padding:30px; background-color:#ffffff;"><pre>'.print_r($_SESSION, true).'</pre></div>';
?>
<script>
var a = "<?php echo $_SESSION['Id']; ?>";
alert(a);
</script>
If that doesn't work then try manually setting the ID before the echo
<?php
php session_start();
$_SESSION['Id'] = 'AN ID!!!';
echo '<div style="padding:30px; background-color:#ffffff;"><pre>'.print_r($_SESSION, true).'</pre></div>';
?>
First, like the comments have mentioned, make sure you're using the correct case of id, whether it's id or Id.
Second, try using json_encode to convert it for javascript use. No need for "":
var a = <?php echo json_encode($_SESSION['Id']); ?>;
Try this to see if the variable $_SESSION['Id'] exists and is set to something
<?php
session_start();
print_r( $_SESSION );
?>
<script type="text/javascript">
var a = "<?php echo $_SESSION['Id']; ?>";
alert(a);
</script>
var_dump$_SESSION?