Otto,
Here's one of the samples that's shipped with the php distribution which should clearly demonstrate how a java class is referenced within a php script and how it is then reflected into a php variable and can be worked with like any other object. This sample is called jver.php.
<?
$system = new Java("java.lang.System");
print "Java version=".$system->getProperty("java.version")." <br>\n";
print "Java vendor=".$system->getProperty("java.vendor")." <p>\n\n";
print "OS=".$system->getProperty("os.name")." ".
$system->getProperty("os.version")." on ".
$system->getProperty("os.arch")." <br>\n";
$formatter = new Java("java.text.SimpleDateFormat",
"EEEE, MMMM dd, yyyy 'at' h:mm:ss a zzzz");
print $formatter->format(new Java("java.util.Date"))."\n";
?>
Alex