[英]How to access a particular key->value pair and exclude a specific key->value pair from an associative array in PHP?
我有一個名為$_SESSION[BASE_SESSION_NAME]['my_cart']
的關聯數組。 供您參考,我正在打印數組,如下所示:
Array
(
[6f993b72511c37f4ab4d7273066b8160] => Array
(
[pack_id] => 6f993b72511c37f4ab4d7273066b8160
[pack_type] => test
[pack_type_id] => 4
[pack_name] => NEET XII Biology
[pack_price] => 459.00
[pack_validity] => Array
(
[years] => 1
[months] => 0
[days] => 0
)
)
[cart_summary] => Array
(
[total_no_packages] => 3
[total_pack_price] => 1557
[final_total_pack_price] => 1557
[total_pack_discount] => 0
[apply_deal_code] => 0
[no_of_discounted_packages] => 0
)
[67f76ffae26ffdcde7a392c5534c972a] => Array
(
[pack_id] => 67f76ffae26ffdcde7a392c5534c972a
[pack_type] => test
[pack_type_id] => 4
[pack_name] => NEET XII Chemistry
[pack_price] => 599.00
[pack_validity] => Array
(
[years] => 1
[months] => 0
[days] => 0
)
)
[31dc7c5d9b9cb5a2ba968e74efd4a475] => Array
(
[pack_id] => 31dc7c5d9b9cb5a2ba968e74efd4a475
[pack_type] => test
[pack_type_id] => 4
[pack_name] => NEET XII Physics
[pack_price] => 499.00
[pack_validity] => Array
(
[years] => 1
[months] => 0
[days] => 0
)
)
)
現在,我只想訪問具有pack_id值或ok key pack_id
值的鍵。 例如,值[31dc7c5d9b9cb5a2ba968e74efd4a475]或密鑰pack_id
的值為[pack_id] => 31dc7c5d9b9cb5a2ba968e74efd4a475
。 但是問題是,存在另一個具有鍵[cart_summary]
數組,我不想使用該數組中的任何東西。 我必須對每個此類pack_id進行查詢。 所以我想借助循環來觸發查詢。 誰能幫我解決這個問題? 提前致謝。 我要使用的查詢如下:
SELECT package_type.package_type_name
FROM package_type
JOIN test_packages ON package_type.package_type_id = test_packages.test_pack_type_id
WHERE test_packages.test_pack_id = '$propsed_pack_id'
這是您在評論中要求的關聯數組的foreach
$mycart = $_SESSION[BASE_SESSION_NAME]['my_cart'];// where $mycart is the array structure
//as shown above in the question
foreach($mycart as $key=>$value)
{
//where $key holds the pack_id i.e. the array key value
$propsed_pack_id = $value['pack_id'];
if($key != "cart_summary")
{
//execute you sql query
$query = "SELECT package_type.package_type_name
FROM package_type
JOIN test_packages ON package_type.package_type_id =
test_packages.test_pack_type_id
WHERE test_packages.test_pack_id = '$propsed_pack_id'";
......
}
}
我希望這可以有所幫助。
unset($arr["item"])
從名為$ arr的數組中刪除鍵為“ item”的項目。
一種方法是,您可以按照saran banerjee的指示直接放入“購物車摘要”支票。
但我建議,您可以對數組中的“ pack_id”鍵進行檢查,而不是對“購物車摘要”進行硬編碼檢查。 如果存在,則執行對該pack_id的查詢,否則不執行。
$mycart = $_SESSION[BASE_SESSION_NAME]['my_cart'];
foreach($mycart as $key=>$value)
{
//where $key holds the pack_id
$propsed_pack_id = isset($value['pack_id']) ? $value['pack_id'] : '';
if($propsed_pack_id != "")
{
//execute you sql query
$query = "SELECT package_type.package_type_name
FROM package_type
JOIN test_packages ON package_type.package_type_id =
test_packages.test_pack_type_id
WHERE test_packages.test_pack_id = '$propsed_pack_id'";
}
}
如果我很了解您想要什么,則應該使用循環並尋找正確的密鑰。
如果您的后端語言是PHP。
foreach($_SESSION[BASE_SESSION_NAME]['my_cart'] as $cart) {
if (isset($cart['pack_id'])) {
// Here you get the pack id, only if exist as a key inside the array
}
}
希望能有所幫助...
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