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<?php
/**
* Mailer no timeout pattern with HTML_Progress2_Lite.
*
* @version $Id$
* @author Laurent Laville <pear@laurent-laville.org>
* @package HTML_Progress2
* @subpackage Examples
* @access public
* @example examples/lite/mailer2.php
* mailer2 source code
* @link http://www.laurent-laville.org/img/progress/screenshot/mailer2.png
* screenshot (Image PNG, 425x314 pixels) 3.57 Kb
*/
require_once 'HTML/Progress2_Lite.php';
/**
* NOTE: The function {@link http://www.php.net/manual/en/function.usleep.php}
* did not work on Windows systems until PHP 5.0.0
*/
function _sleep($usecs)
{
if ((substr(PHP_OS, 0, 3) == 'WIN') && (substr(PHP_VERSION,0,1) < '5') ){
for ($i=0; $i<$usecs; $i++) { }
} else {
usleep($usecs);
}
}
$pb = new HTML_Progress2_Lite(array(
'left' => 150,
'top' => 240,
'width' => 400,
'height' => 50,
'padding' => 2
));
$pb->setBarAttributes(array(
'color' => '#FF6633',
'background-color' => 'yellow'
));
$pb->addLabel('percent', 'pct1');
$pb->setLabelAttributes('pct1', array(
'width' => 0,
'left' => 570,
'top' => 250,
'font-size' => 24,
'font-weight' => 'normal',
'color' => 'navy',
));
// Adds additional text label for process legend
$labelTxtID = 'legend';
$pb->addLabel('text', $labelTxtID);
$pb->setLabelAttributes($labelTxtID, array(
'color' => 'navy',
'font-size' => 14,
'font-weight' => 'bold',
'top' => 220
));
$maximum_send = 5; // max number of emails to send each page load
$total_subscribers = 500; // total of subscribers of your newsletter
$post = ($_SERVER['REQUEST_METHOD'] == 'POST');
if ($post) {
$start_with = (int)$_POST["start_with"];
$error_count = (int)$_POST["error_count"];
} else {
$start_with = 0;
$error_count = 0;
}
$sent = 0;
if ($total_subscribers >= $start_with)
{
// retrieve all necessary data in the database
_sleep(0); // process simulation
// if new data are available, then ...
$sent = $maximum_send;
// else, $error_count++;
}
$start_with += $sent;
// set the new progress value
$complete = round($start_with / $total_subscribers * 100);
$pb->setLabelAttributes('pct1', array('value' => intval($complete)));
$pb->setLabelAttributes($labelTxtID, array(
'value' => sprintf('Mails sent: %s/%s', $start_with, $total_subscribers)
));
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>Mailer no timeout Progress2_Lite example</title>
<style type="text/css">
<!--
body {
background-color: #E0E0E0;
color: #000000;
font-family: Verdana, Arial;
}
-->
</style>
<script type="text/javascript">
<!--
var wait = 0; // wait one second = 1000
// Pause for N milliseconds to display the progress meter
function pause()
{
setTimeout("submitForm();", wait);
}
// Submit the form with the new value range
function submitForm()
{
var complete = parseInt(document.forms[0].complete.value);
if (complete < 100) { // re-submit the form if the job is not done
document.forms[0].submit();
}
}
//-->
</script>
</head>
<body onLoad="pause();">
<form name="form" method="post"
action="<?php echo basename($_SERVER['PHP_SELF']) ?>">
<input type="hidden" name="start_with" value="<?php echo $start_with; ?>"/>
<input type="hidden" name="error_count" value="<?php echo $error_count; ?>"/>
<input type="hidden" name="complete" value="<?php echo $complete; ?>"/>
</form>
<?php
if ($complete < 100) {
$pb->display();
$pb->moveStep(intval($complete));
} else {
$pb->hide();
printf('<p>Mailing Process Ended with %d error(s)</p>', $error_count);
}
?>
</body>
</html>