我正在尝试从cart.php中删除单个项目,它无法正常工作。我该怎么办 ?这是我的代码:
<?php
error_reporting(0);
$item_id = $_GET["item_id"];
session_start();
if(!empty($_SESSION["incart"])) {
foreach($_SESSION["incart"] as $select => $val) {
unset($_SESSION["incart"]);
}
}
?>
print_r输出
Array (
[0] => Array (
[item_id] => 100002
[item_name] => Porsche
[item_price] => 200
[item_img] => porsche.jpg
[nowdate] => 40
[enddate] =>60
)
)
答案 0 :(得分:1)
请尝试以下代码:
public class square {
private int sideLength;
private int area;
public square( int initialLength ) {
sideLength = initialLength;
area = sideLength * sideLength;
}
public int area() {
return area;
}
public void grow() {
sideLength = 2 * sideLength;
}
}