fork download
copy 
  1. <?php
  2. $str = ":1-2-35:2-3-1:5-6-27456:35-2-11:9-5-6:1-5-2:";
  3. $pattern = "/:(2-\d+-\d+|\d+-2-\d+|\d+-\d+-2)(?=:)/";
  4.  
  5. preg_match_all($pattern, $str, $matches);
  6.  
  7. print_r($matches[1]);
  8.  
  9. ?>
  10.  
Success #stdin #stdout 0.01s 20520KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Array
(
    [0] => 1-2-35
    [1] => 2-3-1
    [2] => 35-2-11
    [3] => 1-5-2
)
https://ideone.com/tlM6fo
Illustration of answer to http://stackoverflow.com/questions/16962040/regex-find-all-groups-where-you-can-find-a-given-number.
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!