Hello!
Please help!
I'm on PHP. I have an url: 'http://example.com/articles/123a/view', how do I get '123a' only from this string with regular expression (preg_replace, probably). Can't figure it out. Thanks in advance.
A:
Try this regular expression:
^(?:[^/]*/){4}([^/]+)
preg_match('/^(?:[^\\/]*\\/){4}([^\\/]+)/', $str, $match)
$match[1] will then hold your 123a.
Gumbo
2009-08-20 18:57:34
Doesn't work, it returns 'Unknown modifier '/' ' error
Andersson83
2009-08-20 18:59:57
I typed this: preg_replace('^(?:[^/]*/){4}([^/]+)', '', http://example.com/articles/123a/view)
Andersson83
2009-08-20 19:00:32
@Andersson83: You forgot the delimiters.
Gumbo
2009-08-20 19:05:45
+7
A:
Why Regex?
$parts = explode('/', 'http://example.com/articles/123a/view');
echo $parts[4];
Philippe Gerber
2009-08-20 19:00:24
The third parameter of `explode` allows you to set a limit. You could set it to `6` to prevent some possible superfluous exploding.
Geert
2009-08-20 21:33:24
Since the proper answer was provided you should accept it (to the left of the answer). Also this should really be a comment not an answer.
EBGreen
2009-08-20 19:06:20