Ingeoding Array ...同时IGNORING嵌套数组？

问题描述：

I have looked around and I see a lot of people asking how to implode arrays with nested arrays. However, these people usually want to include the nested array as well. I do not want to include the nested array... I want to throw out the nested array...

This is my array:

[tag] => Array
(
    [0] => one
    [1] => two
    [0_attr] => Array
        (
            [category] => three
            [lock] => four
        )

    [2] => five
)

If I implode this array, comma delimited, I want the result to be:

one, two, five

Notice how three and four are NOT included. Since they are a nested array, I don't want it. I only want immediate values. How exactly would I get this done?

我环顾四周，看到很多人都在询问如何使用嵌套数组来破坏数组。但是，这些人通常也希望包含嵌套数组。我不想包含嵌套数组...我想抛弃嵌套数组... p>

这是我的数组： p>

   [tag] =＆gt; 数组
（
 [0] =＆gt;一个
 [1] =＆gt;两个
 [0_attr] =＆gt;数组
（
 [类别] =＆gt;三
 [锁] =＆gt  ; 4 
）
 
 [2] =＆gt;五
）
  code>  pre> 
 
 如果我内爆此数组，逗号分隔，我希望结果为 是： p> 
 
 
 一，二，五
  code>  pre> 
 
 请注意三个和四个不包括在内。 因为它们是嵌套数组，所以我不想要它。 我只想要立即的价值观。 我究竟怎么做到这一点？ p> 
  div>

答

You would need to iterate all the values in $tag and filter out those is array
such as

$tags = array();
foreach ($tag as $index=>$value)
{
  if (!is_array($value))
  {
     $tags[$index] = $value;
  }
}
implode(',', $tags);

I found the above is a bit tedious,
here is the improved version

$arr = array(0 => "one", 1 => "two", 2 => array(1,2,3), 3=>4, 4=>new stdClass);
echo implode(",", array_filter($arr, "is_scalar"));

output :

one,two,4

Ingeoding Array ...同时IGNORING嵌套数组？

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