print "<br/>"; #���� class student { private $name; public function setName($name) { $this->name = $name; } public function getName() { return $this->name; } } $zgx = new student(); $zgx->setName("zgx"); printf("%s", $zgx->getName()); #ǿ��ת�� $t1 = 10; $t2 = "5"; $result = $t1 + $t2; echo " {$result} <br/>"; $t3 = "1a"; $result += $t3; echo " {$result} <br/>"; #���� $t4 =& $t3; printf("\$t3 :%d<br/>", $t3); $t4 = "change"; printf("\$t3 :%d<br/>", $t3); function ref_test(&$param)