如何提取鍵以 id 結尾的元素？我想通過鍵將一個數組分成兩個數組，其中每個元素都有一個以它的 id 結尾的鍵。數組：array( 'key_1' => 'some value 1', 'key_2' => 'some value 2', );現在，我有兩個 ID，1 和 2。預期的數組：array_one( 'id' => 1, 'value' => 'some value 1', );array_two( 'id' => 2, 'value' => 'some value 2', );實際上，我有一個來自表單的 $_POST 數組。每個鍵都以其 Id 結尾，我想通過它們的 Id 將主數組分成兩個數組。這是我擁有的數組： Array( [itemId_1] => 1 [product_id_1] => 1 [desc_1] => desc for the first item [quantity_1] => 5 [unit_1] => kilogram [priceUnit_1] => 100 [discount_1] => 0 [taxCost_1] => 45 [itemId_2] => 2 [product_id_2] => 2 [desc_2] => desc for the second item [quantity_2] => 10 [unit_2] => metre [priceUnit_2] => 150 [discount_2] => 0 [taxCost_2] => 135)現在，我希望這些數組將它們中的每一個保存到數據庫中。數組必須用 itemId 分隔： Array( [itemId] => 1 [product_id] => 1 [desc] => desc for the first item [quantity] => 5 [unit] => kilogram [priceUnit] => 100 [discount] => 0 [taxCost] => 45) Array( [itemId] => 2 [product_id] => 2 [desc] => desc for the second item [quantity] => 10 [unit] => metre [priceUnit] => 150 [discount] => 0 [taxCost] => 135)
2 回答
鴻蒙傳說
TA貢獻1865條經驗 獲得超7個贊
您可以foreach像這樣編輯數組并將結果存儲在新數組中。
$items = array(
'key_1' => 'some value 1',
'key_2' => 'some value 2',
);
$result = array();
foreach ($items as $index => $value){
$id = str_replace('key_','',$index);
$result['array_'.$id] = [
'id' => $id,
'value' => $value,
];
}
extract($result); // must return array_1 and array_2
繁星淼淼
TA貢獻1775條經驗 獲得超11個贊
好的，我已經這樣做了：
foreach ($_POST as $key => $value) {
$array{$id[1]} = array();
$id = explode('_', $key);
${"array" . $id[1]}[] = array($id[0] => $value);
}
$array1 = call_user_func_array('array_merge', $array1);
var_dump($array1);
$array2 = call_user_func_array('array_merge', $array2);
var_dump($array2);
這會給我兩個數組：
Array
(
[itemId] => 1
[product_id] => 1
[desc] => desc for the first item
[quantity] => 5
[unit] => kilogram
[priceUnit] => 100
[discount] => 0
[taxCost] => 45
)
Array
(
[itemId] => 2
[product_id] => 2
[desc] => desc for the second item
[quantity] => 10
[unit] => metre
[priceUnit] => 150
[discount] => 0
[taxCost] => 135
)
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