douciwang6819
douciwang6819
2014-06-17 00:20

正则表达式PHP如何匹配字符串的内部部分[重复]

已采纳

This question already has an answer here:

I need a php regex that will do the following with my original string

<div>The quick jumped over <p>[video=xdf890sfadf]</p> the white fence.</div>

to

<div>The quick jumped over <p><iframe src="http://www.youtube.com/embed/xdf890sfadf?rel=0&amp;vq=hd720" height="365" width="650" allowfullscreen="" frameborder="0"></iframe></p> the white fence.</div>

So what I need do to is pull the video ID out of the any give string of html.

I want to use the preg_replace() function for this, but I'm confused about the proper regex to use with it. Please help.

</div>
  • 点赞
  • 写回答
  • 关注问题
  • 收藏
  • 复制链接分享
  • 邀请回答

1条回答

  • dongwuwan5646 dongwuwan5646 7年前

    A simple search here on SO and should be no problem. Just get it using preg_match(). Consider this example:

    $original_string = '<div>The quick jumped over <p>[video=xdf890sfadf]</p> the white fence.</div>';
    preg_match('/\[video=([^\]]+)\]/', $original_string, $matches);
    if(!empty($matches)) {
        $value = $matches[1];
        $video = $matches[0];
        $new_string = '<div>The quick jumped over <p><iframe src="http://www.youtube.com/embed/'.$value.'?rel=0&amp;vq=hd720" height="365" width="650" allowfullscreen="" frameborder="0"></iframe></p> the white fence.</div>';
        echo $new_string;
    }
    

    Note: credit goes to https://stackoverflow.com/a/8935740/1978142

    Sample Output

    点赞 评论 复制链接分享