PHP Preg expression to remove html tags and inner contents from string?

问题

quick question.

I'd like to remove the sup tag from the following string, and all content within it.

$string = "Priority Mail<sup>&reg;</sup> International";

How would I do that?

回答1:

I imagine something like this would work:

preg_replace("(<([a-z]+)>.*?</\\1>)is","",$input);

回答2:

$string = preg_replace ("/<sup>(.*?)<\/sup>/i", "", $string);

You should know that (.*?) can't deal with \n or \r, so filter them first.

来源：https://stackoverflow.com/questions/10508801/php-preg-expression-to-remove-html-tags-and-inner-contents-from-string