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我有一个数组被设置为$ _SESSION [“cart_array”],输出是这样的,当物品在购物车中。PHP计数阵列数量
Array ([0] => Array ([item_id] => 1 [quantity] => 6) [1] => Array ([item_id] => 2 [quantity] => 1))
我想创建一个foreach循环经历和计数“量”的价值观,以获得一个总车项目数,到目前为止,我有以下,但我只是无法弄清楚如何获得它变成一个字符串变量,所以我可以在其他页面上显示它。
$cartCount = array();
if (!isset($_SESSION["cart_array"]) || count($_SESSION["cart_array"]) < 1) {
$cartCount = 0;
} else {
foreach ($_SESSION["cart_array"] as $each_item) {
//$cartCount += $each_item['quantity']; <-- commented out as not working.
//$cartCount[$each_item['item_id']] += $each_item['quantity']; <-- commented out as not working.
}
//Print array for debugging purposes
print_r($_SESSION["cart_array"]);
}