Need PHP regex to match pattern in URL

Question

I have problem with matching pattern in URL and getting the right result.

The URL example:

#1: http://www.example.com/webapp/first-text-vs-some-text.html
#2: http://www.example.com/webapp/first-text-a1-vs-sec-b2-text.html
#3: http://www.example.com/webapp/first-text-a1-vs-sec-b2-text-vs-third-c3-text.html
#4: http://www.example.com/webapp/some-text-a1-vs-sec-text-b2-vs-third-text-vs-last-text-c1.html

Result without -vs- (HINT: -vs- can be shown once or repetitive from above URLs):

#1: first-text and some-text
#2: first-text-a1 and sec-b2-text
#3: first-text-a1, sec-b2-text and third-c3-text
#4: some-text-1a, sec-text-b2, third-text and last-text-c1

Is there a way of PHP loop to do that?

There is a situation that -vs- in URL structure can be found once or multiple times.

Should I get my results with few patterns or can it be possible done with one pattern match?

Should I first split the given URL and then check for characters & symbols left or right of the -vs-?

Had You have that kind of situation ever? Any ideas?

Thanks a lot for help and sharing ideas to get final result!

You are able to retrieve strings and you want to separate substrings by “-vs-”, right? Use explode( '-vs-', $string );. Regex can't capture (as separated) repeating groups — fusion3k
– fusion3k, Commented Apr 7, 2016 at 17:21
Thanks for ideas. Will try with explode() and str_replace() to get it working. — Ho Thanh Cyberdelia Nhan
– Ho Thanh Cyberdelia Nhan, Commented Apr 7, 2016 at 17:58

James Buck · Accepted Answer · 2016-04-07 20:05:17Z

1

You can use the following regex ([^\/.]+?)(?:-vs-|\.\w+$) with preg_match_all to return the different parts before and after -vs-.

Regex demo

answered Apr 7, 2016 at 20:05

James Buck

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2 Comments

Ho Thanh Cyberdelia Nhan Over a year ago

Any way to match given URL with slash / on ending instad of .html? Example: example.com/directory/… . If I test regex for above URL, the 4th (third) match does not shown up.

James Buck Over a year ago

@Fritex Add another condition in the non-capturing group like so: ([^\/.]+?)(?:-vs-|\.\w+$|\/$). Demo

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