I have a html string
$html = <p>I'm a para</p><b> I'm bold </b>
Now I can replace the bold tags with wiki markup(*) using php regex as:
$html = preg_replace('/<b>(.*?)<\/b>/', '*\1*', $html);
Apart from this I also want the leading and trailing whitespaces in the bold tag removed in the same php's preg_replace function.
Can anyone help me on how to do this?
Thanks in advance,
Varun
Try using:
$html = preg_replace('~<b>\s*(.*?)\s*</b>\s*~i', '*\1*', $html);
\s in between the tags and the string to keep will strip away the spaces to trim. The i flag just for case insensitivity and I used ~ as delimiters so you don't have to escape forward slashes.
Apart from this I also want the leading and trailing whitespaces in the bold tag removed
Easy enough this will do it just fine.
$html = preg_replace('/<b>\s+(.*?)\s+<\/b>/', '*\1*', $html);
See the demo
Use \s symbol for that (\s* means that there could be 0 or more occurrences):
$html = preg_replace('/\<b\>\s*(.*?)\s*\<\/b\>/i', '*\1*', $html);
-I also suggest to use i modifier since html tags are case insensitive. And, finally, symbols < and > should be escaped for more safety (they are part of some regex construsts. Your regex will work without escaping them, but it's a good habit to escape them so be sure to avoid errors with that)
(edit): it seems I've misunderstood 'trailing/leading' sense.
