合并多数组 Laravel

Question

我有 3 个数组如下："promotion_news_id" => array:3 [▼    0 => "ID1"    1 => "ID2"    2 => "ID3"  ]  "promotion_news_name" => array:3 [▼    0 => "abc 1"    1 => "abc 2"    2 => "abc 3"  ]  "news_id" => array:3 [▼    0 => "Title 1"    1 => "Title 2  ]我想将这 3 个数组组合成 1 个数组，如下所示：array:3 [▼  0 => array:3 [▼    'promotion_news_id' => "ID1"    'promotion_news_name' => "abc 1"    'news_id' => "Title 1"  ]  1 => array:3 [▼    'promotion_news_id' => "ID2"    'promotion_news_name' => "abc 2"    'news_id' => "Title 2"   ],  2 => array:3 [▼    'promotion_news_id' => "ID3"    'promotion_news_name' => "abc 3"    'news_id' => "null"  ]]我尝试但未能获得空值。非常感谢任何帮助！非常感谢！

Answer 1

假设所有三个数组都具有相同数量的元素，

$result = [];

foreach($promotion_news_id as $index => $value){

    $result[] = array(

        'promotion_news_id' => $value

        'promotion_news_name' => $promotion_news_name[$index]

        'news_id' => $news_id[$index]

    )

}

另外，不确定为什么你有 null 值"null"而不是null. 前者只是一个字符串，而不是实际的空值。

Answer 2

而不是"null"放null

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