Extract a string of numbers and symbols with regular expression with using php preg_match

Question

what regular expression i must use if i want to extract "-i123213131345" from URL like this http://example.com/blabla-bla-i123213131345/blabla

I have tried with something like '/(-i _[0-9])/' but without success — Pavel Kenarov, Jun 26 '13 at 08:31
Why would that work? There's no underscore in there... `/-i\d+/` — elclanrs, Jun 26 '13 at 08:33

score 0 · Accepted Answer · answered Jun 26 '13 at 08:34

0

Try -i[0-9]+ pattern.

Sample:

$str = 'http://example.com/blabla-bla-i123213131345/blabla';
$pattern = '/-i[0-9]+/';
preg_match($pattern, $str, $matches);
var_dump($matches);

Here's useful tool to play with regexes before you implement them. Also it helps a lot to learn Regex.

answered Jun 26 '13 at 08:34

Leri

So much of an effort for a new user :P – sybear Jun 26 '13 at 08:36
@Jari Question was not well-formed but it was new user's mistake. ;) – Leri Jun 26 '13 at 08:39

1 Answers1