Please help to make preg_replace regex to change html tags to "BB"
<img src="URL" style="max-width: 780px;"/>
<div id="center">TEXT</div>
<a href="http://href.li/?URL" target="blank">$1</a>
<iframe width="780" height="450" src="//www.youtube.com/embed/TEXT" frameborder="0" allowfullscreen></iframe>
<strong>TEXT</strong>
[img]$1[/img]
[center]$1[/center]
[link]$1[/link]
[video]$1[/video]
[strong]$1[/strong]
OK. I did it
%<img src=\"*(.*?)\".*>%
As there is not really a pattern for a simple replace (different attributes from different tags are needed in newly named bb-tags), an indivdual regex for each replacement pair could help:
$rx_map = array(
'~<strong>(.*?)</strong>~is' => '[strong]\1[/strong]',
'~<img\s[^>]*\bsrc="([^"]+)".*?/>~is' => '[img]\1[/img]',
'~<a\s[^>]*\bhref="([^"]+)".*?</a>~is' => '[link]\1[/link]',
'~<iframe\s[^>]*\bsrc="([^"]+)".*?</iframe>~is' => '[video]\1[/video]',
'~<div\s+id="center">(.*?)</div>~is' => '[center]\1[/center]',
);
$str = preg_replace(array_keys($rx_map), array_values($rx_map), $str);
Used modifiers i for caseless and s for making the dot also match newlines. This would replace to:
[img]URL[/img]
[center]TEXT[/center]
[link]http://href.li/?URL[/link]
[video]//www.youtube.com/embed/TEXT[/video]
[strong]TEXT[/strong]
test at eval.in; As others mentioned already, regex is generally not recommended for parsing html. Depending on your data, it might not be the best option to use regex here and lead to problems.
