PHP 使用 array_push 向多维数组添加元素
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PHP add elements to multidimensional array with array_push
提问by bikey77
I have a multidimensional array $md_array and I want to add more elements to the sub-arrays recipe_type and cuisine coming from a loop that reads data from a table.
我有一个多维数组 $md_array ，我想向来自从表中读取数据的循环的子数组 recipe_type 和美食添加更多元素。
In the loop, I create a new table $newdata for each row:
在循环中，我为每一行创建一个新表 $newdata：
$newdata = array (
'wpseo_title' => 'test',
'wpseo_desc' => 'test',
'wpseo_metakey' => 'test'
);
and then, using array_push()I need to append the $newdata arrays to the following multidimensional array:
然后，使用array_push()我需要将 $newdata 数组附加到以下多维数组：
$md_array= array (
'recipe_type' =>
array (
18 =>
array (
'wpseo_title' => 'Salads',
'wpseo_desc' => 'Hundreads of recipes for Salads',
'wpseo_metakey' => ''
),
19 =>
array (
'wpseo_title' => 'Main dishes',
'wpseo_desc' => 'Hundreads of recipes for Main dishes',
'wpseo_metakey' => ''
)
),
'cuisine' =>
array (
22 =>
array (
'wpseo_title' => 'Italian',
'wpseo_desc' => 'Secrets from Sicily in a click',
'wpseo_metakey' => ''
),
23 =>
array (
'wpseo_title' => 'Chinese',
'wpseo_desc' => 'Oriental dishes were never this easy to make',
'wpseo_metakey' => ''
),
24 =>
array (
'wpseo_title' => 'Greek',
'wpseo_desc' => 'Traditional Greek flavors in easy to make recipies',
'wpseo_metakey' => ''
)
)
);
Whats the syntax for adding a new element (array) to the recipe_type array with array_push? I could never get my head around multidimensional arrays and I'm a bit confused.
使用array_push 向recipe_type 数组添加新元素（数组）的语法是什么？我永远无法理解多维数组，我有点困惑。
回答by Dinesh
if you want to add the data in the increment order inside your associative array you can do this:
如果要在关联数组中以递增顺序添加数据，可以执行以下操作：
$newdata = array (
'wpseo_title' => 'test',
'wpseo_desc' => 'test',
'wpseo_metakey' => 'test'
);
// for recipe
$md_array["recipe_type"][] = $newdata;
//for cuisine
$md_array["cuisine"][] = $newdata;
this will get added to the recipe or cuisine depending on what was the last index.
这将根据最后一个索引添加到食谱或美食中。
Array push is usually used in the array when you have sequential index: $arr[0] , $ar[1].. you cannot use it in associative array directly. But since your sub array is had this kind of index you can still use it like this
当您有顺序索引时，通常在数组中使用数组推送： $arr[0] , $ar[1] .. 不能直接在关联数组中使用它。但是由于您的子数组具有这种索引，您仍然可以像这样使用它
array_push($md_array["cuisine"],$newdata);
回答by dtech
As in the multi-dimensional array an entry is another array, specify the index of that value to array_push:
在多维数组中，一个条目是另一个数组，指定该值的索引到 array_push：
array_push($md_array['recipe_type'], $newdata);
回答by jb_
I know the topic is old, but I just fell on it after a google search so... here is another solution:
我知道这个话题很老，但我只是在谷歌搜索后就爱上了它，所以......这是另一个解决方案：
$array_merged = array_merge($array_going_first, $array_going_second);
This one seems pretty clean to me, it works just fine!
这个对我来说似乎很干净，它工作得很好！
