fork(3) download
copy 
  1. <?php
  2.  
  3. $rx = "~(?<!\\\\)(?:\\\\{2})*\(\?(?|P?<([_A-Za-z]\w{0,31})>|'([_A-Za-z]\w{0,31})')~";
  4. $s = "(?P<name>\w+): (?<name2>\w+): (?'digit'\d+)";
  5. preg_match_all($rx, $s, $res);
  6. print_r($res[1]);
Success #stdin #stdout 0.02s 23784KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Array
(
    [0] => name
    [1] => name2
    [2] => digit
)
https://ideone.com/UoLUYB
language:
PHP (php 7.3.5)
created:
6 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!