php - PHP Regex: Extract lucky and charms from lucky charms

Question

Reqex Question: Extract words

lucky
charms

from string:

<a>lucky <b>charms</b></a>

My attempt:

preg_match_all("/<(.*)>(.*)<\/(.*)>+/is", $text, $matches);
print_r($matches);

Result:

Array
(
    [0] => Array
        (
            [0] => <a>lucky <b>charms</b></a>
        )

    [1] => Array
        (
            [0] => a>lucky <b>charms</b
        )

    [2] => Array
        (
            [0] => 
        )

    [3] => Array
        (
            [0] => a
        )

)

Answer 1

结束标签和下一个开始标签之间的所有内容怎么样

preg_match_all("/\>([^\<]+)\</is", $text, $matches);

然后你想要的比赛在$matches[1]

Array
(
    [0] => Array
        (
            [0] => >lucky <
            [1] => >charms<
        )
    [1] => Array
        (
            [0] => lucky 
            [1] => charms
        )
)

Answer 2

如果您始终具有该结构，则可以使用：

preg_match("#<(.*?)>(.*?)<(.*?)>(.*?)</\\3></\\1>#is", '<a>lucky <b>charms</b></a>', $matches);

其中$matches包含：

array(5) {
  [0]=>
  string(26) "lucky charms"
  [1]=>
  string(1) "a"
  [2]=>
  string(6) "lucky "
  [3]=>
  string(1) "b"
  [4]=>
  string(6) "charms"
}

Answer 3

您的正则表达式不合适，因为 * 已准备好使用？使 * non-gready 或更改您的正则表达式

<([^>]+)>(.*?)</\1>