PHP将值推入关联数组 [英] PHP push values into associative array

问题描述

我在任何地方都找不到答案.

I can't find an answer to this anywhere.

foreach ($multiarr as $array) {
   foreach ($array as $key=>$val) {
      $newarray[$key] = $val;
   }
}

说 $ key 具有重复的名称，所以当我尝试插入 $ newarray 时，它实际上是这样的:

say $key has duplicate names, so when I am trying to push into $newarray it actually looks like this:

$newarray['Fruit'] = 'Apples';
$newarray['Fruit'] = 'Bananas';
$newarray['Fruit'] = 'Oranges';

问题是，上面的示例只是替换旧值，而不是强制使用旧值.

The problem is, the above example just replaces the old value, instead of pushing into it.

是否可以像这样推送值?

Is it possible to push values like this?

推荐答案

是的，请注意新的一对方括号:

Yes, notice the new pair of square brackets:

foreach ($multiarr as $array) {
   foreach ($array as $key=>$val) {
      $newarray[$key][] = $val;
   }
}

您还可以使用 array_push() ，引入一个有点开销，但是我通常会坚持使用速记.

You may also use array_push(), introducing a bit of overhead, but I'd stick with the shorthand most of the time.

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