How do I call a javascript function in a PHP generated script? - php

Question

I have one problem. I have a popup and after a user creates a room in the popup, I want to close that popup and then redirect the opener window to a new url. I have the function and everything, except for I do not know how to call the function. (Below I have written where I want the function to load).
Thanks
<?php session_start(); ?>
<script type="text/javascript">
function CloseAndRefresh()
{
opener.location.href = "<?php echo $website_url; ?>/livechat.php?idim=<?php echo $perdorusi2; ?>&room=<?php echo $emri; ?>";
opener.focus();
self.close();
}
</script>
<?php
include_once('db.php');
$perdoruesi = $_GET['perdoruesi'];
if( strlen($_SESSION['id']) > '0' ) { $perdorusi2 = $_SESSION['id']; } else { $perdorusi2 = $perdoruesi; }
function makeRandomString($max=8) {
$i = 0;
$possible_keys = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
$keys_length = strlen($possible_keys);
$str = "";
while($i<$max) {
$rand = mt_rand(1,$keys_length-1);
$str.= $possible_keys[$rand];
$i++;
}
return $str;
}
$emri = makeRandomString();
$hidhnedb = mysql_query("INSERT INTO dbname(`row1`, `row2`) VALUES(NULL, '$emri')");
if($hidhnedb) {
$max=count($_SESSION['mysession']);
$i = $max + 1;
$_SESSION['mysession'][$i][$emri] = $emri;
?>
***Here is the the place where I want to call the javascript function but I do not know how to do that.***
<?php
} else { echo "Error!"; }
?>

Answer 1

What you named "popup" is not really clear: is it another browser window ? An window.confirm or window.alert dialog ? a popup like in jQueryUI or Twitter Bootstrap ?
Let's assume it's a browser window.
You have two possibilities:
1 - Make a single button to close your popup:
<button onClick="CloseAndRefresh()">Close</button>
2 - Trigger it automatically after N seconds:
<script type="application/javascript">
var n = 5;
setTimeout(CloseAndRefresh, 1000*n);
</script>

Answer 2

Try
<script type="text/javascript">
CloseAndRefresh();
</script>
Although a PHP redirect would probably fit your purpose better.
Here is an article on PHP redirects:
http://php.about.com/od/learnphp/ht/phpredirection.htm

Answer 3

You can't invoke Javascript functions from PHP as PHP is running on the server, whereas Javascript is downloaded and run on the client, long after the PHP code has executed. You can however print a <script> tag where you, in this case, invoke the Javascript function you want:
<?php
echo '<script>(function () { CloseAndRefresh(); } ());</script>';