[SOLVED] Optional Regex

[jackpf]

Good evening,

I was just wondering how to make part of the regex optional. For example, this is my current regex:

'/\[text width\=(.*?) height\=(.*?)\](.*?)\[\/text\]/isS'

However, I'd like to make the width=(.*?) height=(.*?) optional.

 

I've tried

'/\[text( width\=(.*?))?( height\=(.*?))?\](.*?)\[\/text\]/isS'

However, since my replacement is

'<textarea style="overflow: auto;" cols="$1" rows="$2">$3</textarea>'

If the height and width are ommited, it sets the contents as $1, so so it messes up my numbering.

 

So yeah...anyone have any ideas?

 

Thanks, Jack.

[Ken2k7]

preg_match('#\[text(\s*width=(?<width>\d+))?(\s*height=(?<height>\d+))?\](?<content>.*?)\[/text]#isS', $str, $match);

 

Call them $match['width'], $match['height'] and $match['content']. Check if they're empty first. You shouldn't have mix ups there.

[jackpf]

I use preg_replace(), so...I'm not really sure how to sort it

[Ken2k7]

Gah...

 

preg_replace('#\[text(\s*width=(\d+))?(\s*height=(\d+))?\](.*?)\[/text]#isS', '<textarea cols="$2" rows="$4">$5</textarea>', $str);

[jackpf]

Brilliant.

 

Cheers