[RESOLVED] Need regex help

[zzz]

I need to be able to detect cases where a string has words separated with commas and are missing space after comma. For example:

skiing, swimming,golf,bodysurfing,juggling, motorcylce,tennis

needs to be

skiing, swimming, golf, bodysurfing, juggling, motorcylce, tennis

I think I can use preg_replace for this, like

preg_replace($pattern, $replacement, $string);

Where my

$replacement = ", ";

I have a difficulty with the $pattern. I ONLY need to match a comma if there's no space right before and after it.

[zypher11]

$pattern = "/([^\s]{1})\,([^\s]+?)/";
$string = "skiing, swimming,golf,bodysurfing,juggling, motorcylce,tennis";
while(preg_match($pattern, $string, $match)){
	$string = preg_replace($pattern, $match['1'] . ", " . $match['2'], $string, 1);
}

It will ONLY replace the comma if it is immediately after a word (no space) and has a word immediately following it (again, no space). Otherwise it will do nothing. That what you were lookin for?

http://gskinner.com/RegExr/ is a really cool program you can download to test your regular expressions, explains what everything does/means and even stores an online database of expressions that others have already created built in.

[zzz]

Cool! This is exactly what I was looking for.