我現在二維數組中有1千多條資料,每條資料中欄位都有冗餘,我現在每條資料中只需要我紅框框出來的3條目標欄位就好啦,其他的都不要,
我現在知道要用雙重的foreach迴圈來做,但是一直做不出來,還請大家幫忙解答一下,謝謝
圖如下:
回複內容:
我現在二維數組中有1千多條資料,每條資料中欄位都有冗餘,我現在每條資料中只需要我紅框框出來的3條目標欄位就好啦,其他的都不要,
我現在知道要用雙重的foreach迴圈來做,但是一直做不出來,還請大家幫忙解答一下,謝謝
圖如下:
題主你是想把二位元組裡你想要的欄位取出來嗎, 不用兩次foreach啊
mt_rand(1, 2000), 'good_name' => 'goodname' . $i, 'xxxxxxx' => 'xxxxx', 'wadadad' => 'adwawdadwad', 'remake' => '' ];}//---構造測試資料 ---$data = [];foreach ($arry as $key => $value) { $data[] = [ 'platform_good_id' => $value['platform_good_id'], 'good_name' => $value['good_name'], 'remake' => $value['remake'], ];}var_dump($data);
如下:
array("a"=>"a","b"=>"b","c"=>"c","d"=>"d","e"=>"e"), "b"=>array("a"=>"a","b"=>"b","c"=>"c","d"=>"d","e"=>"e"), "c"=>array("a"=>"a","b"=>"b","c"=>"c","d"=>"d","e"=>"e"), "d"=>array("a"=>"a","b"=>"b","c"=>"c","d"=>"d","e"=>"e"), "e"=>array("a"=>"a","b"=>"b","c"=>"c","d"=>"d","e"=>"e"));$result = array();foreach ($arr as $k => $v){ $result[$k] = array(); foreach($v as $key => $value){ if($key === "b" || $key === "d" || $key === "e"){ $result[$k][$key] = $value; } }}print_r($arr);print("
");print_r($result);?>
以上代碼是提取其中索引值為 b d e的元素然後組成一個新的數組。