PHP如何检索数组值 [英] PHP how to retrieve array values

问题描述

我有以下数组，我想检索 name、comment 和 每个标签(插入数据库.我怎样才能检索数组值.另外，我是否可以仅过滤大于 3 个字符且仅包含 a-Z0-9 值的标签值.非常感谢.

I have following array, I want to retrieve name, comment and each of the tags (to insert in database. How can i retrieve the array values. Also, can i filter ONLY the tags values which are larger than 3 characters and contains only a-Z0-9 valueus. Thank you very much.

Array
(
    [folder] => /test
    [name] => ajay
    [comment] => hello world.. test comment
    [item] => Array
        (
            [tags] => Array
                (
                    [0] => javascript
                    [1] => coldfusion
                )

        )

)

推荐答案

$name = $array['name'];
$comment = $array['comment'];
$tags = $array['item']['tags']; // this will be an array of the tags

然后您可以遍历标签，例如:

You can then loop over the tags like:

foreach ($tags as $tag) {
  // do something with tag
}

或单独访问每个

echo $tags[0];
echo $tags[1];

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