Redirect the Url pattern ending with specialcharacter and number

Question

My requirement is to redirect some of my urls which contains a 8 digit number and a special character at the end.

Example urls are given below

www.example.com/anything-here/hello-12345677

www.example.com/anything-here/again-here/again-hello-12543598

www.example.com/anything-here/hello-12345677

I am using pregmatch in php to find the patterns containing "-" and 8 digit number.

I tried the below code and it is not working for me. Is my pattern correct?

$result = preg_match("#.*/-\d{8}$#i", request_uri());

HI Chris "-" is the special character followed by 8 digit numbers. Eg: "-12345678" — Vishnu, Aug 03 '16 at 15:36
Oh, might want to reword the `and a special character at the end`. You don't have `/-` in any of your URLs. That is why you get no matches. E.g. `-\d{8}$` would suffice for `-` then 8 numbers at the end of your string. — chris85, Aug 03 '16 at 15:37
With the `$` other wise it is `-` and 8 numbers somewhere in the string. Also you aren't expecting `$result` to have the matched text, right? — chris85, Aug 03 '16 at 15:51
actually url ends with "-" and 8 digit number. But anything can come before the "-" and 8 digit number. Like anything-12345678, any-thing-12345678, any^thing-12345678 — Vishnu, Aug 03 '16 at 15:58
Yea... thats why you need the `$`. Try what I posted. If it doesn't work update the question with your usage and what `var_dump` gives for `request_uri()`. — chris85, Aug 03 '16 at 16:01
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/119028/discussion-between-vishnu-and-chris85). — Vishnu, Aug 03 '16 at 16:07

score 3 · Accepted Answer · answered Aug 03 '16 at 15:35

3

The following pattern will match any URL with a dash followed by 8 digits at the end. URLs with a special character at the end would not match.

$result = preg_match("/.*-\d{8}$/i", request_uri());

Demo here:

Regex101

answered Aug 03 '16 at 15:35

Tim Biegeleisen

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The `.*` and `i` aren't actually needed. – chris85 Aug 03 '16 at 15:41
@Vishnu What special characters do you want to match at the end? – Tim Biegeleisen Aug 03 '16 at 15:50
actually url ends with "-" and 8 digit number. But anything can come before the "-" and 8 digit number. Like anything-12345678, any-thing-12345678, any^thing-12345678. I am using php 5.6 – Vishnu Aug 03 '16 at 16:00
Are you certain my pattern doesn't fit this requirement? – Tim Biegeleisen Aug 03 '16 at 16:59

Don't Panic · Answer 2 · 2016-08-03T15:56:12.280

The problem with the regex you are using is that you put the pattern for the dash and eight digits directly after the forward slash, and in all the examples you showed, there are other characters between the slash and the dash.

//                                    ***** <---These chars don't match your pattern
$url = "www.example.com/anything-here/hello-12345677";
//                    .*             /     -\d{8}  $

If you want to make sure there is a slash in the url before the -\d{8}, you can add another wildcard before it (.*/.*-\d{8}$), or if it doesn't matter, then neither the slash nor the wildcard are required. (-\d{8}$).

score -1 · Answer 3 · edited May 23 '17 at 10:30

-1

$result = substr(request_uri(), strpos(request_uri(), "-") + 1);

source: Get everything after a certain character

edited May 23 '17 at 10:30

Community

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answered Aug 03 '16 at 15:37

brentg

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Check this link: [how to write good answer](http://stackoverflow.com/help/how-to-answer). – Bogdan Bogdanov Aug 03 '16 at 16:40

Redirect the Url pattern ending with specialcharacter and number

3 Answers3

Regex101

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