"'\[b\](.*?)\[/b\]'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.
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1Can you post some of the text your are trying to replace and what you'd like the output to be? – nachito Sep 25 '11 at 13:56
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4One 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 Sep 25 '11 at 13:59
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+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 Sep 25 '11 at 14:06
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possible duplicate of [Best way to parse bbcode](http://stackoverflow.com/questions/488963/best-way-to-parse-bbcode) – Gordon Sep 25 '11 at 14:13
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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 Sep 25 '11 at 14:13
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Finding a simple lib to parse BBcode is as easy as type it in google. You could check my implementation of template parser - it would require few changes to fit bbcode, but you can learn something from it. There _are_ code duplicates, but it is old forgotten project ;) [Grab it here](http://code.google.com/p/qfw/source/browse/trunk/php/lib/templates/template.class.php) – Griwes Sep 25 '11 at 14:14
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@Griwes Regexes parse char by char. He just doing it wrong. But yes, a pattern that validates/parses valid markup will correctly fail to do so on invalid markup. – tchrist Nov 13 '11 at 16:43
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@tchrist, I don't get your point here, in: first, reviving old question, second, saying that I am right. – Griwes Nov 13 '11 at 18:36
2 Answers
1
Try ~ as a delimiter instead
preg_match("~<b>(.*?)</b>~is", $text, $b);
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From the [docs](http://www.php.net/manual/en/regexp.reference.delimiters.php): A delimiter can be any non-alphanumeric, non-backslash, non-whitespace character. So `'` is perfectly valid as a delimiter. – Decent Dabbler Sep 25 '11 at 14:01
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There are various BBCode parsers available for PHP, for instance
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:
