Re: Stripping HTML selectively?

At 09:43 PM 3/3/01 , Erick Papadakis wrote:

Thanks Brian, I have tried the allowable tags, but I need to remove the ATTRIBUTES of a tag, not the tag itself. STRIP_TAGS totally removes the tag, and ALLOWABLE_TAGS lets the tag be. WHat I wish to do is let the main tag be but remove its attributes, as follows:

    Original text:
        <font class="something" style="....">Hi!</font>

    Parsed text:
        <font>Hi!</font>

Thanks/erick

Well, in this case, you'd have to use regular expressions. One way to do it would be:

        $SanitizedString = ereg_replace('<[[:space:]]*([[:alnum:]]+)[^>]*>', "<\\1>", $String);

this _should_ work (haven't tested it). If you wanted to remove some tags entirely, and then remove the attributes of the remaining tags, you could (1) use strip_tags() with a list of allowable tags, then (2) run the regexp above. Incidentally, the above regexp also removes leading spaces from the tag. Eg, < font style="unreadable"> becomes <font>. If you don't want, that user the regexp

        '<([[:space:]]*[[:alnum:]]+)[^>]*>'

instead.

        - steve

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| Steve Edberg                           University of California, Davis |
| sbedberg@ucdavis.edu                                     (530)754-9127 |
| http://aesric.ucdavis.edu/                  http://pgfsun.ucdavis.edu/ |

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