php library to rip all html tags except a h1 and <b>

[jjk2]

so i downloaded an html page. is there anywy of stripping all html tags except h1 h2 h3 <strong> <b> and <a>

[.josh]

strip_tags

[jjk2]

so should i first use smoething to tidy up the html page first, make sure no broken tags exist, and then use strip_tags.

 

will strip_tags work for an array containing the html page.

[premiso]

so should i first use smoething to tidy up the html page first, make sure no broken tags exist, and then use strip_tags.

 

will strip_tags work for an array containing the html page.

 

implode the array and it will. No you do not need to tidy up the html. Just make sure the ones you want allowed are in the 2nd parameter like shown in the manual.

[.josh]

you will have to make sure no broken tags exist, yes.  strip_tags does not validate html, so it may produce unexpected results.

[jjk2]

anyway to fix bad html tags ? and then strip_tags from it ?

[Daniel0]

You can do this:

 

$text = preg_replace('#</?(h[1-3]|b|strong|a)[^>]*>#', '', $html);

 

That'll work with invalid HTML as well.

[.josh]

he wants to remove all tags except those tags.

[Daniel0]

Alright then try with a negative lookahead:

 

$text = preg_replace('#</?(?!h[1-3]|b|strong|a)[^>]*>#', '', $html);