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<?php
class Car
{
    var $color;
    function Car($color="green") {
        $this->color = $color;
    }
    function what_color() {   
        return $this->color;
    }
}
function print_vars($obj) {
    foreach (get_object_vars($obj) as $prop => $val) {
        echo "$prop = $val";
    }
}
// 使用 new 语句实例化一个对象（类）。
$herbie = new Car("white");
// 输出变量 $herbie 的属性。
echo "herbie: Properties<br>";
print_vars($herbie);
?>·
 
 
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