2019独角兽企业重金招聘Python工程师标准>>> 
<?PHP
class myclass{
static $count; //静态化类属性
function __construct(){
self::$count++; //static声明的部分用self访问
}
static function getcount(){
return self::$count;
}
}
myclass::$count=0; //属性的初始化
$c1=new myclass(); //1
$c2=new myclass(); //2
$c3=new myclass(); //3
echo myclass::getcount(); //访问类里的方法 3
echo $c1->getcount(); //3
echo $c2->getcount(); //3
echo $c3->getcount(); //3
?><?php
class myclass{
const VALUE="dongdong11019";
function showvalue(){
return self::VALUE;
}
public function getvalue(){
return $this->showvalue();
}
}
echo myclass::VALUE;
ECHO "<hr/>";
$class1=new myclass();
echo $class1->getvalue();
?>
//dongdong11019
//dongdong11019