php regex [b] to

Question

  "'\[b\](.*?)\[/b\]'is",

Is my current RegEx working. But I want to change the [] to be <> instead. But it doesn't work... What more then just the [] do I need to change.

Can you post some of the text your are trying to replace and what you'd like the output to be? — nachito
– nachito, Commented Sep 25, 2011 at 13:56
One advice, don't do it this way - you can get something like "loremipsumipsum", if you parse multiple tags. Don't use regexp to parse BBCode or anything else that is a markup language - parse it char by char or you will get invalid results. — Griwes
– Griwes, Commented Sep 25, 2011 at 13:59
+1 to @Griwes comment. There are myriad solutions (including PECL and PEAR libraries) that will do the job for you, with much more success than hacking about with regex. — lonesomeday
– lonesomeday, Commented Sep 25, 2011 at 14:06
If you're going to use a posting pseudolanguage, you should be tokenizing the data instead of storing raw HTML. (Basically, you store it in a half-parsed state.) — damianb
– damianb, Commented Sep 25, 2011 at 14:13

Community · Accepted Answer · 2017-05-23 12:19:55Z

1

There are various BBCode parsers available for PHP, for instance

http://www.php.net/manual/en/book.bbcode.php

which allows you to simply define your replacement rules by hand:

echo bbcode_parse(
    bbcode_create(
        array(
            'b' => array(
                'type'      => BBCODE_TYPE_NOARG,
                'open_tag'  => '<b>',
                'close_tag' => '</b>'
            )
        )
    ),
    '[b]Bold Text[/b]'
);
// prints <b>Bold Text</b>

Also check the various similar questions about BBCode Parsers:

https://stackoverflow.com/search?q=bbcode+php

edited May 23, 2017 at 12:19

CommunityBot

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answered Sep 25, 2011 at 14:10

Gordon

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Comments

NikiC · Accepted Answer · 2011-09-25 14:08:04Z

1

Try ~ as a delimiter instead

preg_match("~<b>(.*?)</b>~is", $text, $b);

edited Sep 25, 2011 at 14:08

NikiC

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answered Sep 25, 2011 at 13:54

genesis

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1 Comment

Decent Dabbler Over a year ago

From the docs: A delimiter can be any non-alphanumeric, non-backslash, non-whitespace character. So ' is perfectly valid as a delimiter.

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